Epson S1F70000 manual

MF302 - 13 T echnical Manual S1F70000 Series T echnical Manual IEEE1394 Controller S1R77801F00A T echnical Manual S1F70000 Series EPSON Electronic Devices Website ELECTRONIC DEVICES MARKETING DIVISION First issue November,1990 U Revised July,2001 in Japan H B 4.5mm T echnical Manual POWER SUPPLY IC S1F70000 Series http://www.epson.co.jp/device/ Thi[...]

NO TICE No part of this material may be reproduced or duplicated in any from or by any means without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notics. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its app[...]

The information of the pr oduct number c hang e Starting April 1, 2001 the product number has been changed as listed belo w . T o order , please use the ne w pr oduct number . F or further information, please contact Epson sales r e presenta tiv e . Configuration of product n umber ● DEVICES (Example : S1F70000D00B100) S1 F 70000 D 00B1 00 P ac k[...]

S1F70000 Series T ec hnical Manual[...]

Contents S1F70000 Series EPSON i Technical Manual Introduction .......................................................................................................................................................................... 1 Selection Guide ..................................................................................................[...]

Contents ii EPSON S1F70000 Series Technical Manual S1F76540 Series DESCRIPTION ........................................................................................................................................................ 2–15 FEATURES ......................................................................................................[...]

Contents S1F70000 Series EPSON iii Technical Manual CHARACTERISTICS GRAPH ................................................................................................................................ 3–15 S1F79100Y Series DESCRIPTION ...............................................................................................................[...]

Contents iv EPSON S1F70000 Series Technical Manual PACKAGE MARKINGS ................................................................................................................................. 4–26 FUNCTIONAL DESCRIPTIONS .................................................................................................................... 4–[...]

Contents S1F70000 Series EPSON v Technical Manual 5 . Voltage Detector S1F77200Y Series DESCRIPTIO N ................................................................................................................... . ..................................... . 5 –1 FEATURE S ..........................................................................[...]

Contents vi EPSON S1F70000 Series Technical Manual EMBOSS CARRIER TAPING STANDARD (SOP2-24pin) TAPING INFORMATIO N ............................................................................................................ . ........................... . 6 –14 REEL SPECIFICATION S .................................................................[...]

Introduction S1F70000 Series EPSON 1 Technical Manual This book describes SEIKO EPSON's full lineup of power supply ICs and includes a complete set of product specifications. Also included are sections on quality assurance and packaging. We suggest that you use the selector guide beginning on the following page to choose the IC or IC series th[...]

Selection Guide 2 EPSON S1F70000 Series Technical Manual Product Features Package • 6.00V positive output voltage regulator. S1F78100Y2A0 • Low operating current (Typ. 3.0 µ A). SOT89-3pin • Input voltage stability (Typ. 0.1%/V). • 5.00V positive output voltage regulator. S1F78100Y2B0 • Low operating current (Typ. 3.0 µ A). SOT89-3pin ?[...]

Selection Guide S1F70000 Series EPSON 3 Technical Manual Product Features Package • 3.00V positive output voltage regulator. S1F78100Y2D0 • Low operating current (Typ. 3.0 µ A). SOT89-3pin • Input voltage stability (Typ. 0.1%/V). • 2.80V positive output voltage regulator. S1F78100Y2R0 • Low operating current (Typ. 3.0 µ A). SOT89-3pin ?[...]

Selection Guide 4 EPSON S1F70000 Series Technical Manual Product Features Package • Voltage detection (Typ. 5.00V). S1F77210Y1L0 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 µ A, V DD = 6.0V). • Voltage detection (Typ. 4.80V). S1F77210Y1K0 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 µ A, V DD[...]

Selection Guide S1F70000 Series EPSON 5 Technical Manual Product Features Package • Voltage detection (Typ. 4.60V). S1F77210Y120 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 µ A, V DD = 5.0V). • Voltage detection (Typ. 4.40V). S1F77210Y1J0 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 µ A, V DD[...]

Selection Guide 6 EPSON S1F70000 Series Technical Manual Product Features Package • Voltage detection (Typ. 1.15V). S1F77200Y1B0 • Output format: N-ch open drain. SOP89-3pin • Low operating power (Typ. 1.5 µ A, V DD = 1.5V). • Voltage detection (Typ. 1.10V). S1F77200Y1Y0 • Output format: N-ch open drain. SOP89-3pin • Low operating powe[...]

1. DC/DC Con ver ter[...]

S1F76600 Series S1F70000 Series EPSON 1–1 Technical Manual S1F76600 Series DESCRIPTION The S1F76600 Series is a highly efficient CMOS DC/ DC converter for doubling an input voltage (from –1.5V to –8V). This power-saving IC allows portable computers and similar hand-held equipment to operate from a single power supply, even when they incorpora[...]

S1F76600 Series 1–2 EPSON S1F70000 Series Technical Manual Parameter Symbol Rating Unit Input voltage range V I –10.0 to 0.5 V Output voltage range V O Min. –20.0 V Power dissipation P D 300 (DIP) mW 150 (SOP) Operating temperature range T opr –40 to +85 ˚C Storage temperature range T stg –65 to +150 ˚C Soldering temperature(for 10s). S[...]

S1F76600 Series S1F70000 Series EPSON 1–3 Technical Manual S1F76600 Series V DD = 0V, Ta = –40 to +85˚C unless otherwise noted Parameter Symbol Condition Rating Unit Min. Typ. Max. Input voltage V I –8.0 — –1.5 V Output voltage V O –16.0 — — V Multiplier current I OPR R L = ∞ , R OSC = 1M Ω —2 0 3 0 µ A V I = –5V Quiescent[...]

S1F76600 Series 1–4 EPSON S1F70000 Series Technical Manual Typical Performance Characteristics 1000 100 10 1 10 100 1000 10000 f OSC [kHz] R OSC [k Ω ] V I = –5V V I = –3V V I = –2V T a = 25 ° C 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 –40 –20 0 20 40 Ta [ ° C] f OSC [kHz] 60 80 100 V I = –5.0V V I = –3.0V V I = ?[...]

S1F76600 Series S1F70000 Series EPSON 1–5 Technical Manual S1F76600 Series 0 –5 –10 01 0 2 0 3 0 V O [V] I O [mA] T a = 25 ° C V I = –3.0V 0 –1 –2 –3 –4 –5 –6 0 2 3 4 5678 9 1 0 1 V O [V] I O [mA] T a = 25 ° C V I = –2.0V (5) Output voltage vs. Output current (6) Output voltage vs. Output current 300 200 100 0 –7 –6 –5[...]

S1F76600 Series 1–6 EPSON S1F70000 Series Technical Manual 100 90 80 70 60 50 40 30 20 10 0 1 10 100 1000 P eff [%] f OSC [kHz] I O = 2mA I O = 5mA I O = 10mA I O = 20mA I O = 30mA V I = –5.0V 100 90 80 70 60 50 40 30 20 10 0 1 10 100 1000 P eff [%] f OSC [kHz] I O = 0.5mA I O = 1.0mA I O = 2.0mA I O = 4.0mA V I = –3.0V (9) Multiplication eff[...]

S1F76600 Series S1F70000 Series EPSON 1–7 Technical Manual S1F76600 Series FUNCTIONAL DESCRIPTIONS CR Oscillator S1F76600 has a built-in CR oscillator as the internal os- cillator, and an external oscillation resistor R OSC is con- nected between the pins OSC1 and OSC2 before opera- tion. OSC1 OSC2 R OSC (Note 1) Note 1 Since the oscillation freq[...]

S1F76600 Series 1–8 EPSON S1F70000 Series Technical Manual TYPICAL APPLICATIONS Parallel Connection Connecting two or more chips in parallel reduces the output impedance by 1/ n , where n is the number of de- vices used. 5 V C1 10 µ F C2 10 µ F V DD = 0 V V I = –5 V V O = –10 V 1M Ω + + 8 7 6 5 1 2 3 4 C1 10 µ F 1M Ω + 8 7 6 5 1 2 3 4 [...]

S1F76600 Series S1F70000 Series EPSON 1–9 Technical Manual S1F76600 Series Positive Voltage Conversion Diodes can be added to a circuit connected in parallel to make a negative voltage positive. 5 V C2 10 µ F V DD = 0 V V O ' = 3.8 V V I = –5 V 1M Ω + C1 10 µ F + 8 7 6 5 1 2 3 4 Simultaneous Voltage Conversion Combining a multiplier ci[...]

S1F76620 Series 1–10 EPSON S1F70000 Series Technical Manual DESCRIPTION S1F76620 is a high efficiency and low power consump- tion CMOS DC/DC converter. It enables to obtain 2 times step-up output (3.0 to 16V) from input voltage (1.5 to 8V). Also, S1F76620 enable to drive ICs (liquid crystal driver, analog IC, etc.), which require another power su[...]

S1F76620 Series S1F70000 Series EPSON 1–11 Technical Manual S1F76620 Series PIN DESCRIPTIONS Pin Assignments P OFF GND OSC1 OSC2 1 2 3 4 8 7 6 5 V O CAP1+ CAP1– V DD Pin Assignments of SOP4-8pin Pin descriptions Description Input pin for power off control. Power pin. (Minus side, System GND) Oscillation resistor connection pin. Works as the clo[...]

S1F76620 Series 1–12 EPSON S1F70000 Series Technical Manual Pad Center Coordinates (S1F76620D0A0) Chip External Shape Y X + (0,0) 2.60mm 2.30mm Pad Assignment Pad aperture : 100 µ m × 100 µ m Chip thickness : 400 µ m Note Do not bond the NC pad. Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Pad name (NC) (NC) P OFF (NC) (NC) (NC) GND (V S[...]

S1F76620 Series S1F70000 Series EPSON 1–13 Technical Manual S1F76620 Series FUNCTIONAL DESCRIPTIONS CR Oscillator S1F76620 has a built-in CR oscillator as the internal os- cillator, and an external oscillation resistor R OSC is con- nected between the pins OSC1 and OSC2 before opera- tion. OSC1 OSC2 R OSC (Note 1) Note 1 Since the oscillation fre[...]

S1F76620 Series 1–14 EPSON S1F70000 Series Technical Manual ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings (Ta = –40 to +85 ° C) Note 1 Under the conditions exceeding the above absolute maximum ratings, the IC may result in a permanent destruction. An operation for a long period under the conditions of the above absolute maximum ratings m[...]

S1F76620 Series S1F70000 Series EPSON 1–15 Technical Manual S1F76620 Series Recommended Operating Conditions (Ta = –40 to +85 ° C) Note 1 All voltages are based on the GND being 0V. Note 2 The figure below shows the recommended circuit for operation with low voltages (V DD = 1.5 to 2.2V): P OFF R L C L * D 1 C 1 + – + – C 2 GND OSC1 OSC2 *[...]

S1F76620 Series 1–16 EPSON S1F70000 Series Technical Manual Electrical Characteristics (V DD = 5V, Ta = –40 to +85 ° C) Parameter Input supply voltage Output voltage Step-up circuit current consumption Static current Oscillation frequency Output impedance Step-up power conver- sion efficiency Input leak current Symbol V DD V O I OPR I Q f OSC [...]

S1F76620 Series S1F70000 Series EPSON 1–17 Technical Manual S1F76620 Series Characteristics Graph (1) Oscillation frequency vs. External resistance for oscillation (2) Oscillation frequency vs. Temperature (3) Step-up circuit current consumption vs. Input current (4) Output voltage (V O ) vs. Output current 1 –40 –20 0 20 40 60 80 100 30 28 2[...]

S1F76620 Series 1–18 EPSON S1F70000 Series Technical Manual (5) Output voltage (V O ) vs. Output current 2 (6) Output voltage (V O ) vs. Output current 3 (7) Output impedance vs. Input current 1 (8) Output impedance vs. Input voltage 2 4 3 2 1 0 6 5 4 3 2 1 0 0123456789 1 0 0 5 10 15 20 V O [V] I O [mA] I O [mA] V O [V] T a=25 ° C V DD =3V C 1 =[...]

S1F76620 Series S1F70000 Series EPSON 1–19 Technical Manual S1F76620 Series (9) Step-up power conversion efficiency vs. Output current 1 Input current vs. Output current 1 (11) Step-up power conversion efficiency vs. Output current 3 Input current vs. Output current 3 . (12) Step-up power conversion efficiency vs. Oscillation frequency 1 100 90 8[...]

S1F76620 Series 1–20 EPSON S1F70000 Series Technical Manual (13) Step-up power conversion efficiency vs. Oscillation frequency 2 (14) Step-up power conversion efficiency vs. Oscillation frequency 3 (15) Step-up start voltage (1) vs. Load resistance 100 90 80 70 60 50 1 10 100 1000 I O =0.5mA I O =1mA I O =5mA I O =2mA f ocs[kHz] P eff[%] T a=25 ?[...]

S1F76620 Series S1F70000 Series EPSON 1–21 Technical Manual S1F76620 Series EXAMPLE OF REFERENCE EXTERNAL CONNECTION 2 Times Step-up 2 times step-up output of V O (2 × V DD ) is obtained from the circuit shown in Figure 1. P OFF 2 V I V I + – + – GND OSC1 OSC2 V O CAP1+ CAP1– V DD 1 2 3 4 8 7 6 5 • Figure 1 2 Time Step-up Operation Paral[...]

S1F76620 Series 1–22 EPSON S1F70000 Series Technical Manual Series Connection When S1F76620 is connected in series (V DD and V O in the previous stage are connected to GND and V DD in the next stage respectively), the output voltage can be increased more. But the series connection makes the output impedance high. Figure 3 shows an example of the [...]

S1F76620 Series S1F70000 Series EPSON 1–23 Technical Manual S1F76620 Series Negative Voltage Conversion S1F76620 can boost input voltage to twice on the positive potential side by using the circuit shown in Figure 6. But the output voltage drops by the forward voltage V F of the diode. When GND is 0V, V DD is 5V and V F is 0.6V as shown in Figure[...]

S1F76620 Series 1–24 EPSON S1F70000 Series Technical Manual MEASUREMENT CIRCUIT P OFF V I + – + – GND OSC1 C 2 V O I O R L C 1 R OSC I OPR OSC2 V O CAP1+ CAP1– V DD 1 2 3 A A 4 8 7 6 5 V V[...]

S1F76620 Series S1F70000 Series EPSON 1–25 Technical Manual S1F76620 Series MECHANICAL DATA S1F76620M0A0 SOP4-8pin 85 14 INDEX D E HE θ e b A 1 A 2 A θ 3 θ 2 L C R R 1 L 1 L 2 * for reference Symbol E D 1 A A 1 A 2 e b C θ L L 1 L 2 H E D θ 2 θ 3 R R 1 Dimension in Milimeters Min. 4.8 — 0.25 0.05 6.4 4.8 Nom. 5 — 1.75 0.15 1.6 1.27 0.35[...]

2. DC/DC Con ver ter & V oltage Regulator[...]

S1F76610 Series S1F70000 Series EPSON 2–1 Technical Manual S1F76610 Series DESCRIPTION The S1F76610 Series is a highly effecient CMOS DC/ DC converter for doubling or tripling an input voltage. It incorporates an on-chip voltage regulator to ensure stable output at the specified voltage. The S1F76610 Series offers a choice of three, optional temp[...]

S1F76610 Series 2–2 EPSON S1F70000 Series Technical Manual PIN ASSIGNMENTS PIN DESCRIPTIONS S1F76610C0B0/M0B0 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 CAP+ CAP– CAP2+ CAP2– TC1 TC2 V I 14 13 12 11 10 9 8 V DD OSC1 OSC2 P OFF RV V REG V O CAP+ CAP– NC CAP2+ CAP2– TC1 TC2 V I V DD OSC1 NC OSC2 P OFF RV V REG V O 16 15 14 13 12 11 10 9 S1F76610M2B0 S1F[...]

S1F76610 Series S1F70000 Series EPSON 2–3 Technical Manual S1F76610 Series SPECIFICATIONS Absolute Maximum Ratings Notes 1. Using the IC under conditions exceeding the aforementioned absolute maximum ratings may lead to permanent destruction of the IC. Also, if an IC is operated at the absolute maximum ratings for a longer period of time, its fun[...]

S1F76610 Series 2–4 EPSON S1F70000 Series Technical Manual 3. R Lmin is a function of V 1 Electrical Characteristics V DD = 0V, V 1 = –5V, Ta = –40 to +85 ° C unless otherwise noted C1 10 µ F C2 10 µ F 1 2 3 4 5 6 7 14 13 12 11 10 9 8 R OSC C L R L 1M Ω C3 22 µ F D1 + + + 5 4 3 2 1 0 1 Input voltage (V) Minimum load resistance (k Ω ) [...]

S1F76610 Series S1F70000 Series EPSON 2–5 Technical Manual S1F76610 Series Uni t Ω % %/V Ω Ω V %/˚C µ A Parameter Output impedance Multiplication efficiency Stabilization output voltage differential Stabilization output load differential Stabilization output saturation resistance Reference voltage Temperature gradient P OFF , TC1, TC2, OS[...]

S1F76610 Series 2–6 EPSON S1F70000 Series Technical Manual Typical Performance Characteristics 1000 100 10 1 10 100 1000 10000 R OSC [k Ω ] f OSC [kHz] V I = –5V V I = –3V V I = –2V T a = 25 ° C 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 –40 –20 0 20 40 60 80 100 Ta [ ° C] f OSC [kHz] V I = –5.0V V I = –3.0V V I = ?[...]

S1F76610 Series S1F70000 Series EPSON 2–7 Technical Manual S1F76610 Series 0 –5 –10 –15 0 1 02 03 0 I O [mA] V o [V] × 2 multiplier × 3 multiplier T a = 25 ° C V I = –3.0V I O [mA] V O [V] 0 01 23456789 1 0 –1 –2 –3 –4 –5 –6 T a = 25 ° C V I = –2.0V × 2 multiplier × 3 multiplier (5) Output voltage vs. Output current (6[...]

S1F76610 Series 2–8 EPSON S1F70000 Series Technical Manual 0 12 3456789 1 0 I O [mA] I I [mA] 100 90 80 70 60 50 40 30 20 10 0 40 36 32 28 24 20 16 12 8 4 0 P eff [%] T a = 25 ° C V I = –2.0V × 2 multiplier P eff × 3 multiplier P eff × 3 multiplier I I × 2 multiplier I I 500 400 300 200 100 0 –7 –6 –5 –4 –3 –2 –1 0 V I [V] R [...]

S1F76610 Series S1F70000 Series EPSON 2–9 Technical Manual S1F76610 Series 1 10 100 1000 f OSC [kHz] 100 90 80 70 60 50 P eff [%] I O = 0.5mA I O = 1.0mA I O = 2.0mA I O = 4.0mA T a = 25 ° C V I = – 3.0V V O = –15V –7.850 –7.900 –7.950 –8.000 0.0001 0.0010 0.0100 0.1000 T a = 25 ° C V REG [V] I O [V] (13) Multiplication efficiency v[...]

S1F76610 Series 2–10 EPSON S1F70000 Series Technical Manual 0 5 10 15 20 0.30 0.25 0.20 0.15 0.10 0.05 0.00 T a = 25 ° C V O = –5V V O = –10V V O = –15V I O [mA] |V REG -V O | [V] 50 0 –50 –40 –20 0 20 40 60 80 100 CT0 Ta [ ° C] 100 × |V REG ( ° C)|-|V REG (25 ° C)|/|V REG (25 ° C)| [%] CT1 CT2 (17) Regulator voltage vs. Output [...]

S1F76610 Series S1F70000 Series EPSON 2–11 Technical Manual S1F76610 Series FUNCTIONAL DESCRIPTIONS CR Oscillator The on-chip CR oscillator network frequency is deter- mined by the external resistor, R OSC , connected be- tween OSC1 and OSC2. This oscillator can be disabled in favor of an external clock by leaving OSC2 open and applying an extern[...]

S1F76610 Series 2–12 EPSON S1F70000 Series Technical Manual TYPICAL APPLICATIONS Voltage Tripler with Regulator The following figure shows the circuit required to triple the input voltage, regulate the result and add a tempera- ture gradient of –0.4%/ ° C. Note that the high input im- pedance of RV requires appropriate noise countermea- sures.[...]

S1F76610 Series S1F70000 Series EPSON 2–13 Technical Manual S1F76610 Series Serial Connection Connecting two or more chips in series obtains a higher output voltage than can be obtained using a parallel <Precautions when connecting loads> In case of series connections, when connecting loads between the first stage V DD (or other potential o[...]

S1F76610 Series 2–14 EPSON S1F70000 Series Technical Manual Simultaneous Voltage Conversion Combining a standard voltage tripler circuit with one for positive voltage conversion generates both –15 and 8.2V outputs from a single input, however, it also raises the output impedance. A voltage doubler generates –10 and 3.8V outputs. Potential lev[...]

S1F76540 Series S1F70000 Series EPSON 2–15 Technical Manual S1F76540 Series DESCRIPTION The S1F76540C0A0/M0A0 is a CMOS process, charge-pumping DC/DC converter and voltage regula- tor featuring the very high efficiency but low power consumption. An addition of four, three, or two exter- nal capacitors can generate four-, three- or two-time output[...]

S1F76540 Series 2–16 EPSON S1F70000 Series Technical Manual BLOCK DIAGRAM PIN DESCRIPTIONS V DD Power-off control circuit Voltage converter circuit Clock generator circuit Booster control circuit Voltage regulation circuit Reference voltage circuit C1P C2N C2P C3N C1N FC V I P OFF1 P OFF2 TC1 TC2 V O V RI RV V REG 1 2 3 4 5 6 7 8 V O V RI V REG R[...]

S1F76540 Series S1F70000 Series EPSON 2–17 Technical Manual S1F76540 Series Table 2.1 Pin descriptions Pin name Pin No. Pad No. Description V O 1 18 Four-time booster output V RI 2 19 Regulator input V REG 3 20 Regulator output R V 4 21 Regulator output voltage adjustment input V DD 5 22, 23 Power pin (positive) FC 6 24 Internal clock frequency i[...]

S1F76540 Series 2–18 EPSON S1F70000 Series Technical Manual Table 2.2 Absolute maximum ratings V DD reference Parameter Symbol Rating Unit Remarks Min. Max. Input power voltage V I –26.0/N V DD + 0.3 V N = Boost time V I pin Input pin voltage V 1 V I – 0.3 V DD + 0.3 V P OFF1 , P OFF2 , TC1, TC2 and FC pins Output pin voltage 1 V OC1 V I – [...]

S1F76540 Series S1F70000 Series EPSON 2–19 Technical Manual S1F76540 Series ELECTRICAL CHARACTERISTICS Table 2.3 DC characteristics (1) Parameter Symbol Characteristics Min. Typ. Max. Unit N = Boost time if CT0 is selected –22/N –2.4 V Input power voltage V I N = Boost time if CT1 is selected –22/N –2.4 V N = Boost time if CT2 is selected[...]

S1F76540 Series 2–20 EPSON S1F70000 Series Technical Manual Parameter Symbol Characteristics Min. Typ. Max. Unit I O = 10 mA, V I = –5.0 V during 4-time boosting 200 300 Ω Boost output impedance R O C1, C2, C3, C O = 10 µ F (tantalum) I O = 10 mA, V I = –3.0 V, Ta = 25 ° C during 4-time boosting 250 300 Ω C1, C2, C3, C O = 10 µ F (tant[...]

S1F76540 Series S1F70000 Series EPSON 2–21 Technical Manual S1F76540 Series Parameter Symbol Characteristics Min. Typ. Max. Unit Regulated output load V RI = –20 V, V REG = –15 V, variation ∆ V O ( * 3) Ta = 25 ° C setup 30 50 mV 0 < I REG < 20 mA V REF0 TC1 = V DD , TC2 = V DD –1.55 –1.50 –1.45 V Reference voltage V REF1 TC1 =[...]

S1F76540 Series 2–22 EPSON S1F70000 Series Technical Manual Table 2.4 AC characteristics V DD = 0 V and V I = –5.0 V unless otherwise noted Parameter Symbol Conditions Min. Typ. Max. Unit FC = V DD , Ta = 25 ° C 3.0 4.0 6.0 kHz Internal clock frequency 1 f CL1 P OFF1 = V I P OFF2 = V DD Ta = –30 ° C 2.0 4.0 7.0 kHz Pin used: C1P to +85 ° C[...]

S1F76540 Series S1F70000 Series EPSON 2–23 Technical Manual S1F76540 Series Figure A1 Characteristic chart: Capacitance vs. output impedance when 4X pressure is applied NOTE: This characteristic chart simply indicates an approximate trend in the characteristics, which may vary depending on evaluation environment, parts used, and other factors. 55[...]

S1F76540 Series 2–24 EPSON S1F70000 Series Technical Manual Voltage Converter The voltage converter, consisting of a boost control cir- cuit and a voltage converter circuit, receives clocks from the clock generator circuit and boosts the input power voltage (V I ) four, three or two times. During four-time boosting, however, the three-time and tw[...]

S1F76540 Series S1F70000 Series EPSON 2–25 Technical Manual S1F76540 Series Reference Voltage Circuit The S1F76540 has a built-in reference voltage circuit for voltage regulation. The regulated voltage (ex- plained in the next “voltage regulator circuit” section) is set depending on the division ratio between this refer- ence voltage and the [...]

S1F76540 Series 2–26 EPSON S1F70000 Series Technical Manual Setup: • Relationship between V REG and reference voltage V REG = R1 + R2 × (Reference voltage) • • • • Equation (1) R1 • Current consumption of division resistors I REG = | V REG | • • • • Equation (2) R1 + R2 Setup example: • To output V REG = –18 V by four-tim[...]

S1F76540 Series S1F70000 Series EPSON 2–27 Technical Manual S1F76540 Series Changing the temperature coefficient: • The temperature coefficient of the regulated voltage depends on the temperature coefficient of the reference voltage (if the division ratio of setup resistors does not depend on the temperature). It is necessary to change the temp[...]

S1F76540 Series 2–28 EPSON S1F70000 Series Technical Manual P OFF1 P OFF2 Functions (High = V DD ) (High = V DD ) Oscillator Booster Regulator Applications Mode (Low = V I ) (Low = V I ) circuit circuit PS1 High Low ON ON ON All circuits are turned on. PS2 Low Low OFF OFF ( * 1) OFF ( * 2) All circuits are turned off. PS3 High High OFF ON ON Slav[...]

S1F76540 Series S1F70000 Series EPSON 2–29 Technical Manual S1F76540 Series CHARACTERISTICS GRAPH 200 180 160 140 120 100 80 60 40 Booster current consumption [ µ A] Booster output impedance [ Ω ] 0 300 280 260 240 220 200 180 160 140 120 100 1 23 4567 5 47 3 Input voltage [V] Input voltage (V I ) vs. Booster circuit current consumption (I OPR[...]

S1F76540 Series 2–30 EPSON S1F70000 Series Technical Manual APPLICATION CIRCUIT EXAMPLES Four-time Booster and Regulator Figure 2.8 gives a wiring example of four-time booster and regulator that is the typical S1F76540 application. This example boosts the input voltage (V I ) four times in negative direction, and outputs the regulated voltage at [...]

S1F76540 Series S1F70000 Series EPSON 2–31 Technical Manual S1F76540 Series ◊ Setup conditions of Figure 2.9 • Internal clock : ON (Low Output mode) • Booster circuit : ON • Regulator : OFF ◊ Power-off procedure • Set the P OFF2 pin to low (V I ) to turn off all circuits. ◊ Ripple voltage • As the output at V O pin is unstable, it[...]

S1F76540 Series 2–32 EPSON S1F70000 Series Technical Manual Parallel Connection (for Increased Boosting) The parallel connection is useful for reduction of booster output impedance or reduction of ripple volt- age. In the parallel connection of “n” lines, the booster output impedance can be reduced to approximately “1/ n". Only the smo[...]

S1F76540 Series S1F70000 Series EPSON 2–33 Technical Manual S1F76540 Series ◊ Setup conditions of Figure 2.11 First stage Second stage • Internal clock : ON (Low Output mode) • Internal clock : OFF • Booster circuit : ON • Booster circuit : ON • Regulator : OFF • Regulator : ON (if C T = –0.04%/ ° C) ◊ Power-off procedure • I[...]

S1F76540 Series 2–34 EPSON S1F70000 Series Technical Manual ◊ Setup conditions of Figure 2.12 • Internal clock : ON (Low Output mode) • Booster circuit : ON • Regulator : ON (if C T = –0.04%/ ° C) ◊ Power-off procedure • Set the P OFF1 pin to low (V I ) to turn off all circuits. ◊ Output voltages • When diodes are used for volt[...]

S1F76540 Series S1F70000 Series EPSON 2–35 Technical Manual S1F76540 Series Positive Voltage Conversion The S1F76540 can also boost up a voltage to the posi- tive potential using external diodes. In such case, how- ever, the regulator function is unavailable. Figure 2.14 gives a wiring example for three-time positive boosting, and Figure 2.15 pro[...]

S1F76540 Series 2–36 EPSON S1F70000 Series Technical Manual ◊ Output voltages • When diodes are used for voltage boosting, the characteristics of diodes directly affect on the voltage boosting characteristics. The forward voltage drop (V F ) of diodes can reduce the booster output voltage. As the example of Figure 2.14 uses three diodes, the [...]

S1F76540 Series S1F70000 Series EPSON 2–37 Technical Manual S1F76540 Series ◊ Setup conditions of Figure 2.16 • Internal clock : ON (Low Output mode) • Booster circuit : ON • Regulator : ON • Thermistor resistor : RT ◊ Power-off procedure • Set the P OFF1 pin to low (V I ) to turn off all circuits. ◊ Regulator temperature coeffici[...]

S1F76640 Series 2–38 EPSON S1F70000 Series Technical Manual DESCRIPTION S1F76640 is a high efficiency and low power con- sumption CMOS DC/DC converter. It is roughly di- vided into two portions, step-up circuit and stabilization circuit. The step-up circuit can provide 2 times step-up outputs (3.6 to 11V), 3 times step-up outputs (5.4 to 16.5V) o[...]

S1F76640 Series S1F70000 Series EPSON 2–39 Technical Manual S1F76640 Series BLOCK DIAGRAM Figure 3-1 Block Diagram CAP3+ V O VRI V REG RV P OFF TC1 TC2 CAP2– CAP2+ CAP1– CAP1+ V DD OSC2 GND OSC1 V oltage conversion circuit CR oscillator Ref erence voltage gener ator V oltage stabilization circuit T emperature gradient selection circuit Step-u[...]

S1F76640 Series 2–40 EPSON S1F70000 Series Technical Manual PIN ASSIGNMENTS SSOP2-16pin Figure 4-2 Pin Assignments of SSOP2-16pin RV V REG TC1 TC2 P OFF (GND)V SS OSC1 OSC2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 V RI V O CAP3+ CAP2+ CAP2– CAP1+ CAP1– V DD[...]

S1F76640 Series S1F70000 Series EPSON 2–41 Technical Manual S1F76640 Series Pin No. Pin name Description 1 RV Stabilization voltage regulation pin. When the intermediate tap of the external volume (3-pin resistor) connected between the V DD pin and the V REG pin is connected to the RV pin, V REG output voltage can be adjusted. 2V REG Stabilized v[...]

S1F76640 Series 2–42 EPSON S1F70000 Series Technical Manual Chip External Shape Figure 4-4 Pad Assignments (x) (y) (t) Chip size : 2.30mm × 2.60mm × 0.30mm PAD aperture : 1 00 µ m × 100 µ m DIE number : F76640D0A0 Pad Center Coordinates S1F7664D0A0 Pad Pad Center Coordinates No. Name X[ µ m] Y[ µ m] 1 RV –984.0 1096.0 2V REG 788.0 3 (TES[...]

S1F76640 Series S1F70000 Series EPSON 2–43 Technical Manual S1F76640 Series FUNCTIONAL DESCRIPTIONS CR Oscillator S1F76640 has a built-in CR oscillator as the internal oscillator, and an external oscillation resistor R OSC is connected between the pins OSC1 and OSC2 before operation. (Figure 5.1) Figure 5-1 CR Oscillator Figure 5-2 External Clock[...]

S1F76640 Series 2–44 EPSON S1F70000 Series Technical Manual Note 1 : At the 3 times step-up time, 2 times step-up output (–10V) cannot be taken out from the CAP2– pin. Note 2 : At the 4 times step-up time, 2 times step-up output (–10V) cannot be taken out from the CAP2– pin. Note 3 : At the 4 times step-up time, 3 times step-up output (?[...]

S1F76640 Series S1F70000 Series EPSON 2–45 Technical Manual S1F76640 Series P OFF TC2 TC1 Temperature V REG CR Remarks (Note 1) (Note 1) (Note 1) Gradient C T (Note 2) Output Oscillator — 1(V DD ) Low(V SS ) Low(V SS ) –0.40%/ ˚C ON ON — 1(V DD ) Low(V SS ) High(V O ) –0.25%/ ˚C ON ON — 1(V DD ) High(V O ) Low(V SS ) –0.55%/ ˚C ON [...]

S1F76640 Series 2–46 EPSON S1F70000 Series Technical Manual ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Parameter Symbol Rating Unit Remarks Min. Max. Input supply voltage V DD GND-0.3 24/N V V DD N = 2 : 2 times step-up N = 3 : 3 times step-up N = 4 : 4 times step-up Input pin voltage V I GND–0.3 V DD -0.3 V OSC1,P OFF GND–0.3 V O -0[...]

S1F76640 Series S1F70000 Series EPSON 2–47 Technical Manual S1F76640 Series Recommended Operating Conditions Note 1 : All voltages are based on the GND being 0V. Note 2 : The figure below shows the recommended circuit for operation with low voltages (V DD =1.8 to 2.2V): Figure 6-2-1 Recommended Circuit Diagram for Low Voltage Operation (Example o[...]

S1F76640 Series 2–48 EPSON S1F70000 Series Technical Manual Electrical Characteristics Unless otherwise specified, Ta=–40˚C to +85˚C GND=0V, V DD =5V Parameter Symbol Specification Value Unit Conditions Measurement Min. Typ. Max. Circuit Input supply voltage V DD 1.8 — 5.5 V — — Output voltage V O — — 22 V — — V REG V RV —2 2 [...]

S1F76640 Series S1F70000 Series EPSON 2–49 Technical Manual S1F76640 Series Measurement Circuit (Described on S1F76640M0A0) Step-up circuit characteristic measurement circuit Stabilization circuit characteristic measurement circuit Note 1 : All voltage values are based on GND being 0V. Note 2 : The value shown here is the step-up circuit conversi[...]

S1F76640 Series 2–50 EPSON S1F70000 Series Technical Manual Input leak current measurement circuit 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A Connection to each measurement pin[...]

S1F76640 Series S1F70000 Series EPSON 2–51 Technical Manual S1F76640 Series 1000 100 10 1 10 100 1000 10000 30 28 26 24 22 20 18 16 14 12 10 -40 -20 0 20 40 60 80 100 f osc[kHz] T a[˚C] f osc[kH Z ] Rosc[k Ω ] T a=25˚C V DD =5V V DD =3V V DD =2V V DD =2V V DD =3V V DD =5V 200 150 100 50 0 20 18 16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 0 10 20 30 I[...]

S1F76640 Series 2–52 EPSON S1F70000 Series Technical Manual 12 10 8 6 4 2 0 V O [V] 8 7 6 5 4 3 2 1 0 V O [V] I O [mA] 0 5 10 20 15 I O [mA] 012 3 4 5 6 7 8 9 1 0 T a=25˚C V DD =3V C 1 to C 4 =10 µ F T a=25˚C V DD =3V C 1 to C 4 =10 µ F 4 times step-up 3 times step-up 2 times step-up 4 times step-up 3 times step-up 2 times step-up 700 600 500[...]

S1F76640 Series S1F70000 Series EPSON 2–53 Technical Manual S1F76640 Series 100 90 80 70 60 50 40 30 20 10 0 P eff[%] 150 120 90 60 30 0 I DD [mA] I DD [mA] 100 90 80 70 60 50 40 30 20 10 0 100 90 80 70 60 50 40 30 20 10 0 P eff[%] I O [mA] 01 0 2 0 3 0 I O [mA] 0 5 10 15 20 T a=25˚C V DD =5V C 1 to C 4 =10 µ F T a=25˚C V DD =3V C 1 to C 4 =10[...]

S1F76640 Series 2–54 EPSON S1F70000 Series Technical Manual (13) Step-up power conversion (14) Step-up power conversion efficiency vs. Oscillation frequency 2 efficiency vs. Oscillation frequency 3 (15) Step-up start voltage (1) vs. Load resistance (16) Stabilization output saturation resistance vs. Load current 100 90 80 70 60 50 40 30 20 10 0 P[...]

S1F76640 Series S1F70000 Series EPSON 2–55 Technical Manual S1F76640 Series (17) Output voltage (V REG ) vs. Output current 1 (18) Output voltage (V REG ) vs. Output current 2 (19) Output voltage (V REG ) vs. Output current 3 (20) Reference voltage vs. Temperature 8.00 7.95 7.90 7.85 V REG [V] I REG [mA] 0.1 1.0 10.0 100.0 6.00 5.95 5.90 5.85 V R[...]

S1F76640 Series 2–56 EPSON S1F70000 Series Technical Manual MECHANICAL DATA Plastic SSOP2-16pin Unit : mm +0.007 –0.008 (0.002) 0.05 (0.016) 0.4 (0.014 0.36 ± 0.1 +0.004 –0.003 ) (0.059 ± 0.003) 1.5 ± 0.1 (0.066Max.) 1.7Max. (0.173 4.4 ± 0.2 –0.007 +0.008 ) (0.244 ± 0.011) 6.2 ± 0.3 (0.275Max.) 7Max. ) (0.260 6.6 ± 0.2 (0.006 0.15 ±[...]

S1F76640 Series S1F70000 Series EPSON 2–57 Technical Manual S1F76640 Series APPLICATION EXAMPLE 2 Times Step-up, 3 Times Step-up and 4 Times Step-up Figure 8.1 shows the connection for getting 4 times step-up output of an input voltage by operating the step-up circuit only. In case of 3 times step-up, the capacitor C 3 is removed and CAP3+ (Pin N[...]

S1F76640 Series 2–58 EPSON S1F70000 Series Technical Manual Parallel Connection It is possible to make the output impedance R O small when several pieces of the circuit shown in Figure 8.1 are connected. Parallel connection of n circuits reduces R O to 1/n approximately. One piece of the smoothing capaci- tor C 4 can be commonly used in the same [...]

S1F76640 Series S1F70000 Series EPSON 2–59 Technical Manual S1F76640 Series Note 1 : Precautions on Load Connection When a load is connected between GND in the first stage (or potential below GND in the second stage other than that) and V REG in the second stage as shown in Figure 8.4, pay attention to the following. When a normal output is not a[...]

S1F76640 Series 2–60 EPSON S1F70000 Series Technical Manual Negative Voltage Conversion S1F76640 can boost input voltage to negative power on the negative potential side by using the circuit shown in Figure 8.6. (In case of 3 times step-up, remove the capacitor C 3 and the diode D 4 and short-circuit the both ends of D 4 . In case of 2 times step[...]

S1F76640 Series S1F70000 Series EPSON 2–61 Technical Manual S1F76640 Series Example of Temperature Gradient Change by External Temperature Sensor (Ther- mistor) S1F76640 has a temperature gradient selection circuit inside the stabilization circuit, and three kinds of tempera- ture gradients, –0.20%/˚C, –0.40%/˚C and –0.60%/˚C, can be sel[...]

S1F76640 Series 2–62 EPSON S1F70000 Series Technical Manual Configuration Example of Voltage Stabilized Output (V REG ) Electronic Volume Circuit Figure 8.9 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 V RI (74HC4051) 13 14 15 12 1 5 2 4 11 10 9 6 16 78 3 CTRL0 XPOF (V DD /V SS ) CTRL1 V SS or V O V SS or V O Negative v oltage input V oltage stabiliz e[...]

S1F76640 Series S1F70000 Series EPSON 2–63 Technical Manual S1F76640 Series Configuration Example of High Magnification Step-up Circuit with Diode S1F76640, if an external diode is attached, can realize 5 times or more step-up operation and voltage stabilized output. Since the forward voltage drop V F of the diode makes the output impedance of th[...]

3. V oltage Regulator[...]

S1F78100Y Series S1F70000 Series EPSON 3–1 Technical Manual S1F78100Y Series DESCRIPTION SCI78100Y Series is a fixed type positive voltage regu- lator developed by using the CMOS silicon gate process and is composed of a low current consumption refer- ence voltage circuit, a differential amplifier, an output control transistor and a voltage setti[...]

S1F78100Y Series 3–2 EPSON S1F70000 Series Technical Manual PIN DESCRIPTIONS Pin No. Pin name Description 1V SS Input voltage pin (minus side) 2V DD Input voltage pin (plus side) 3V O Output voltage pin PIN ASSIGNMENTS 12 SO T89-3pin 3[...]

S1F78100Y Series S1F70000 Series EPSON 3–3 Technical Manual S1F78100Y Series FUNCTIONAL DESCRIPTIONS S1F78100Y Series is a fixed positive output type volt- age regulator of series regulator system and is fitted with an output control MOS transistor between the in- put and output pins as shown in the figure below. The voltage regulator feeds back [...]

S1F78100Y Series 3–4 EPSON S1F70000 Series Technical Manual Product Output Voltage Min. Typ. Max. S1F78100Y2A0 5.75 6.00 6.25 S1F78100Y2B0 4.90 5.00 5.10 S1F78100Y2M0 4.40 4.50 4.60 S1F78100Y2P0 3.90 4.00 4.10 S1F78100Y2K0 3.80 3.90 4.00 S1F78100Y2N0 3.43 3.50 3.57 S1F78100Y2T0 3.23 3.30 3.37 S1F78100Y2C0 3.13 3.20 3.27 S1F78100Y2D0 2.93 3.00 3.0[...]

S1F78100Y Series S1F70000 Series EPSON 3–5 Technical Manual S1F78100Y Series RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min. Typ. Max. Unit Input voltage V DD –V SS –– 1 5 V Output current I O 0.01 – – mA Parameter Symbol Rating Unit Input voltage V DD –V SS 21 V Output voltage V O V DD +0.3 to V SS -0.3 Output current I O 100 [...]

S1F78100Y Series 3–6 EPSON S1F70000 Series Technical Manual ELECTRICAL CHARACTERISTICS S1F78100Y2A0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I —— — 1 5 V Output voltage V O V DD =8.0V, I O = –10mA 5.75 6.00 6.25 V Ta=25˚C Current consumpt[...]

S1F78100Y Series S1F70000 Series EPSON 3–7 Technical Manual S1F78100Y Series S1F78100Y2M0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I — ——1 5 V Output voltage V O V DD =6.0V, I O = –10mA 4.40 4.50 4.60 V Ta=25˚C Current consumption I OPR V[...]

S1F78100Y Series 3–8 EPSON S1F70000 Series Technical Manual S1F78100Y2K0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I —— — 1 5 V Output voltage V O V DD =6.0V, I O = –10mA 3.80 3.90 4.00 V Ta=25˚C Current consumption I OPR V DD =3.9V to 15.[...]

S1F78100Y Series S1F70000 Series EPSON 3–9 Technical Manual S1F78100Y Series S1F78100Y2T0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I — ——1 5 V Output voltage V O V DD =5.0V, I O = –10mA 3.23 3.30 3.37 V Ta=25˚C Current consumption I OPR V[...]

S1F78100Y Series 3–10 EPSON S1F70000 Series Technical Manual S1F78100Y2D0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I —— — 1 5 V Output voltage V O V DD =5.0V, I O = –10mA 2.93 3.00 3.07 V Ta=25˚C Current consumption I OPR V DD =3.0V to 15[...]

S1F78100Y Series S1F70000 Series EPSON 3–11 Technical Manual S1F78100Y Series S1F78100Y2L0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I — ——1 5 V Output voltage V O V DD =5.0V, I O = –10mA 2.53 2.60 2.67 V Ta=25˚C Current consumption I OPR [...]

S1F78100Y Series 3–12 EPSON S1F70000 Series Technical Manual S1F78100Y2G0 (Unless otherwise specified, Ta ranges from –40˚C to +85˚C.) Parameter Symbol Conditions (V SS =0.0V) Min. Typ. Max. Unit Input voltage V I —— — 1 5 V Output voltage V O V DD =3.0V, I O = –1mA 1.75 1.80 1.85 V Ta=25˚C Current consumption I OPR V DD =2.2V to 15.[...]

S1F78100Y Series S1F70000 Series EPSON 3–13 Technical Manual S1F78100Y Series Note : Circuit Diagram for Measuring Supply Voltage Rejection Ratio Characteristic f in =50kHz V DD V DD V SS V O C L I L C L =10 µ FI L =10mA S1F78100Y Series[...]

S1F78100Y Series 3–14 EPSON S1F70000 Series Technical Manual EXAMPLE OF REFERENCE EXTERNAL CONNECTION MECHANICAL DATA S1F78100Y SOT89-3pin (2pin) (3pin) S1F78100Y Series V DD V O V SS (1pin) C IN C OUT Input voltage Output voltage 12 1.5 0.48Max. 0.48Max. 0.53Max. 1.5 3 1.8Max. 4.5 ± 0.1 4.25Max. 2.5 ± 0.1 1.5 ± 0.1 0.4 0.8Min. 0.44Max. 0.44Ma[...]

S1F78100Y Series S1F70000 Series EPSON 3–15 Technical Manual S1F78100Y Series CHARACTERISTICS GRAPH S1F78100Y2B0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 I OPR –T a I OPR [ µ A] (V O –V I )[A] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 I OPR [ µ A] T a [˚C] V I [V] I OPR –V I V DD =7V –40 0 5 10 15 –20 0 20 40 60 [...]

S1F78100Y Series 3–16 EPSON S1F70000 Series Technical Manual 5.5 5.0 4.5 V O [V] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 V O [V] V I [V] V O –V I 0 5 10 15 –40 –20 0 20 40 60 80 100 I O =–10mA I O = –50mA T a=25˚C T a [˚C] V DD =7V V O –T a –50 –40 –30 –20 –10 0 5.5 5.3 5.1 4.9 4.7 4.5 V O –I O V O [V] I O [mA] T a=25˚C V DD =7V 40[...]

S1F78100Y Series S1F70000 Series EPSON 3–17 Technical Manual S1F78100Y Series S1F78100Y2G0 (V O –V I )[V] I OPR [ µ A] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 I OPR [ µ A] V I [V] I OPR –V I I OPR –T a 0 5 10 15 –40 –20 0 20 40 60 80 100 T a [˚C] V DD =1.75V I O = –5mA I O = –1mA (V I –V O )–T a –10 –8 –6 –4 –2 0 2.0 1.8 1.6 1.[...]

S1F78100Y Series 3–18 EPSON S1F70000 Series Technical Manual –10 –8 –6 –4 –2 0 2.5 2.0 1.5 V O –I O V O [V] I O [mA] T a=25˚C V DD =3V 5 4 3 2 1 0 ∆ V O [mV] –40 –20 0 20 40 60 80 100 T a [˚C] V DD =3V –10mA ≤ 10 ≤ –1mA ∆ V O –T a –40 –20 0 20 40 60 80 100 2.0 1.5 V O [V] T a [˚C] V O –T a V DD =3V 2.0 1.8 1[...]

S1F78100Y Series S1F70000 Series EPSON 3–19 Technical Manual S1F78100Y Series S1F78100Y2H0 I OPR [ µ A] 6.0 5.0 4.0 3.0 2.0 1.0 0.0 I OPR [ µ A] V I [V] I OPR –V I I OPR –T a 0 5 10 15 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] V DD =3V T a=25˚C I O =0mA (V O –V I )[V] 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 [...]

S1F78100Y Series 3–20 EPSON S1F70000 Series Technical Manual 2.0 1.5 1.0 V O [V] –40 –20 0 20 40 60 80 100 T a [˚C] V DD =3V V O –T a ∆ V O [mV] –40 –20 0 20 40 60 80 100 T a [˚C] V DD =3V 1mA ≤ I O ≤ 30mA ∆ V O –T a 5 4 3 2 1 0 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 V O [V] V I [V] V O –V I 0 5 10 15 I O = –10mA I [...]

S1F79100Y Series S1F70000 Series EPSON 3–21 Technical Manual S1F79100Y Series DESCRIPTION S1F79100Y series voltage regulators provide step- down and stabilization for an input voltage to a speci- fied fixed voltage. The four devices in the series incor- porate a precision, power-saving reference voltage gen- erator, a transistorized differential [...]

S1F79100Y Series 3–22 EPSON S1F70000 Series Technical Manual PIN DESCRIPTIONS SPECIFICATIONS Absolute Maximum Ratings Electrical Characteristics S1F79100Y1H0 Pin No. Pin name Description 1V I Input voltage 2 GND Ground 3V O Output voltage Parameter Symbol Rating Unit Input voltage V I –GND –21 V Output voltage V O GND + 0.3 to V I – 0.3 V O[...]

S1F79100Y Series S1F70000 Series EPSON 3–23 Technical Manual S1F79100Y Series S1F79100Y1G0 S1F79100Y1D0 (V DD = 0V, Ta = –40 ° C to +85 ° C unless otherwise noted) Parameter Symbol Conditions Rating Unit Min. Typ. Max. Input voltage V I — –15.0 — — V Output voltage V O V I = –5.0V, I O = 10mA –3.07 –3.00 –2.93 V Ta = 25 ° C O[...]

S1F79100Y Series 3–24 EPSON S1F70000 Series Technical Manual S1F79100Y1P0 (V DD = 0V, Ta = –40 ° C to +85 ° C unless otherwise noted) Parameter Symbol Conditions Rating Unit Min. Typ. Max. Input voltage V I — –15.0 — — V Output voltage V O V I = –6.0V, I O = 10mA –4.10 –4.00 –3.90 V Ta = 25 ° C Operating current I OPR V I = ?[...]

S1F79100Y Series S1F70000 Series EPSON 3–25 Technical Manual S1F79100Y Series Typical Performance Characteristics S1F79100Y1B0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] I OPR [ µ A] V I = 7V 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 –15 –10 –5 V I [V] I OPR [ µ A] T a = 25˚C I O = 0mA I OPR vs. Ta I OPR vs. V I 1.2 1.0 [...]

S1F79100Y Series 3–26 EPSON S1F70000 Series Technical Manual –5.5 –5.0 –4.5 –40 –20 0 20 40 60 80 100 T a [˚C] V O [V] V I = –7V I O = 10mA –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 0.0 0 –5 –10 –15 V I [V] V O [V] I O = 10mA I O = 50mA T a = 25˚C V O vs. Ta V O vs. V I 40 30 20 10 0 –40 –20 0 20 40 60 80 100 T a [˚C] ∆[...]

S1F79100Y Series S1F70000 Series EPSON 3–27 Technical Manual S1F79100Y Series S1F79100Y1P0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] I OPR [ µ A] V I = –7V 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 –15 –10 –5 V I [V] I OPR [ µ A] T a = 25˚C I O = 0mA I OPR vs. Ta I OPR vs. V I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 –40 –20 0[...]

S1F79100Y Series 3–28 EPSON S1F70000 Series Technical Manual –4.5 –4.0 –3.5 –40 –20 0 20 40 60 80 100 T a [˚C] V O [V] V I = –7V I O = 10mA –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 0.0 0 –5 –10 –15 V I [V] V O [V] I O = 10mA I O = 50mA I O = 30mA T a = 25˚C V O vs. Ta V O vs. V I 40 30 20 10 0 –40 –20 0 20 40 60 80 100 T [...]

S1F79100Y Series S1F70000 Series EPSON 3–29 Technical Manual S1F79100Y Series S1F79100Y1D0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] I OPR [ µ A] V I = –5V 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 –15 –10 –5 V I [V] I OPR [ µ A] T a = 25˚C I O = 0mA I OPR vs. Ta I OPR vs. V I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 –40 –20 0[...]

S1F79100Y Series 3–30 EPSON S1F70000 Series Technical Manual –3.5 –3.0 –2.5 –40 –20 0 20 40 60 80 100 T a [˚C] V O [V] V I = –5V I O = 10mA –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 0.0 0 –5 –10 –15 V I [V] V O [V] I O = 10mA I O = 30mA T a = 25˚C V O vs. Ta V O vs. V I 40 30 20 10 0 –40 –20 0 20 40 60 80 100 T a [˚C] ∆[...]

S1F79100Y Series S1F70000 Series EPSON 3–31 Technical Manual S1F79100Y Series S1F79100Y1G0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] I OPR [ µ A] V I = –3V 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 –15 –10 –5 V I [V] I OPR [ µ A] T a = 25˚C I O = 0mA I OPR vs. Ta I OPR vs. V I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 –40 –20 0[...]

S1F79100Y Series 3–32 EPSON S1F70000 Series Technical Manual –2.5 –2.0 –1.5 –40 –20 0 20 40 60 80 100 T a [˚C] V O [V] V I = –3V I O = 1mA –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 0.0 0 –5 –10 –15 V I [V] V O [V] I O = 10mA I O = 50mA I O = 30mA T a = 25˚C V O vs. Ta V O vs. V I 40 30 20 10 0 –40 –20 0 20 40 60 80 100 T a[...]

S1F79100Y Series S1F70000 Series EPSON 3–33 Technical Manual S1F79100Y Series S1F79100Y1H0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –40 –20 0 20 40 60 80 100 T a [˚C] I OPR [ µ A] V I = –3V 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0 –15 –10 –5 V I [V] I OPR [ µ A] T a = 25˚C I O = 0mA I OPR vs. Ta I OPR vs. V I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 –40 –20 0[...]

S1F79100Y Series 3–34 EPSON S1F70000 Series Technical Manual –2.0 –1.5 –1.0 –40 –20 0 20 40 60 80 100 T a [˚C] V O [V] V I = –3V I O = 1mA –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 0.0 0 –5 –10 –15 V I [V] V O [V] I O = 1mA I O = 30mA I O = 10mA T a = 25˚C V O vs. Ta V O vs. V I 40 30 20 10 0 –40 –20 0 20 40 60 80 100 T a [...]

S1F79100Y Series S1F70000 Series EPSON 3–35 Technical Manual S1F79100Y Series PACKAGE MARKINGS The markings on S1F79100Y series device packages use the following abbreviations. Marking locations V oltage regulator code Output voltage code FUNCTIONAL DESCRIPTIONS Basic Operation The S1F79100Y series uses a 3-pin series regulator feedback loop. An [...]

S1F79100Y Series 3–36 EPSON S1F70000 Series Technical Manual Differential amplifier The built-in differential amplifier generates a potential at point X that adjusts the gate bias of the output transis- tor if there is any difference betweeen V REF and V REG . V REG T o output transistor V SS V REF V I N1 N2 P1 P2 X Output transistor The output s[...]

S1F79100Y Series S1F70000 Series EPSON 3–37 Technical Manual S1F79100Y Series R 1 helps reduce the affect of I SS on V F . It is also re- quired when I SS is lower than the diode bias current. For certain input voltages, a Zener diode with the re- verse polarity can be used. High Input Voltages A preliminary regulator circuit is required to bring[...]

4. DC/DC Switching Regulator s[...]

S1F76300 Series S1F70000 Series EPSON 4–1 Technical Manual S1F76300 Series The S1F76300 series of CMOS switching regulators comprises nine series—the S1F76310, S1F76380 series featuring built-in RC oscillators, the S1F76330 series requiring external crystal oscillators. S1F76310, S1F76380 Series Built-in CR Oscillator Type CMOS Switching Regula[...]

S1F76300 Series 4–2 EPSON S1F70000 Series Technical Manual BLOCK DIAGRAMS S1F76310 Series V I2 V I1 Reference voltage generator CR oscillator PWCR V SW V O GND RST PS Control switch S1F76380 Series RST PWCR V I V SW V O PS V CONT GND Reference voltage generator Control switch CR oscillator + – + –[...]

S1F76300 Series S1F70000 Series EPSON 4–3 Technical Manual S1F76300 Series PIN ASSIGNMENTS S1F76310 Series S1F76380 Series PIN DESCRIPTIONS S1F76310 Series Pin No. Pin name Description 1 PWCR Power-on clear. See note 1. 2 RST Reset signal output. See note 1. 3 GND Ground 4V SW External inductor drive 5V O Output votlage 6V I2 Backup input voltage[...]

S1F76300 Series 4–4 EPSON S1F70000 Series Technical Manual SPECIFICATIONS Absolute Maximum Ratings S1F76310 series Parameter Symbol Rating Unit Input voltage V I1 7V Output current I O 100 mA Output voltage V O 7V Power dissipation P D 200 (SOP3) mW 300 (DIP) Operating temperature range Topr –30 to +85 ˚C Storage temperature range Tstg –65 t[...]

S1F76300 Series S1F70000 Series EPSON 4–5 Technical Manual S1F76300 Series S1F76310M1B0 V SS = 0V, Ta = 25 ˚C unless otherwise noted Parameter Symbol Condition Rating Unit Min. Typ. Max. Input voltage V I1 V O > V I2 0.9 — 2.0 V V I2 0.9 — 2.0 V Output voltage V O V l1 = 1.5V 2.90 3.00 3.10 V Detection voltage V DET 1.00 1.05 1.10 V Detec[...]

S1F76300 Series 4–6 EPSON S1F70000 Series Technical Manual S1F76310M1K0 V SS = 0V, Ta = 25 ˚C unless otherwise noted Parameter Symbol Condition Rating Unit Min. Typ. Max. Input voltage V I1 V O > V I2 0.9 — 2.0 V V I2 0.9 — 2.0 V Output voltage V O V l1 = 1.5V 3.40 3.50 3.60 V Detection voltage V DET 1.00 1.05 1.10 V Detection voltage hys[...]

S1F76300 Series S1F70000 Series EPSON 4–7 Technical Manual S1F76300 Series S1F76380M1H0 V SS = 0V, Ta = 25 ˚C unless otherwise noted Parameter Symbol Condition Rating Unit Min. Typ. Max. Input voltage V I1 0.9 — 2.0 V Output voltage V O V l1 = 1.5V 2.10 2.20 2.30 V Output voltage temperature gradient Kt –5.5 –4.5 –3.5 mV/˚C Detection vo[...]

S1F76300 Series 4–8 EPSON S1F70000 Series Technical Manual Typical Performance Characteristics Detection voltage vs. ambient temperature Clock frequency vs. Input voltage Clock frequency vs. ambient temperature 2.0 1.5 1.0 0.5 0.0 0123456 Ta = 25 ˚C Fixed output voltage (V) Fixed output voltage temperature characteristic (mV/ ˚C ) Fixed-output [...]

S1F76300 Series S1F70000 Series EPSON 4–9 Technical Manual S1F76300 Series Output voltage vs. ambient temperature (S1F76380M1H0) Output voltage vs. ambient temperature (S1F76380M1L0) S1F76310M1B0, S1F76310M1K0 Clock frequency vs. input voltage –30 2.5 2.0 1.5 02 5 Ambient temperature (˚C) Output Voltage (V) 50 85 75 0.5 60 50 40 30 20 10 1.0 1[...]

S1F76300 Series 4–10 EPSON S1F70000 Series Technical Manual Load Characteristics S1F76310M1A0 Notes Inductor: TDK NLF453232-221k (220 µ H) Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSUB20J106M (10 µ F) Notes 1. V I1 = 1.5V 2. Inductor: TDK NLF453232 series Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSUB20J[...]

S1F76300 Series S1F70000 Series EPSON 4–11 Technical Manual S1F76300 Series S1F76380M1L0 Notes 1. V I1 = 1.5V 2. Inductor: TDK NLF453232 series Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSUB20J106M (10 µ F) S1F76380M1H0 Notes Inductor: TDK NLF453232-221k (220 µ H) Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC[...]

S1F76300 Series 4–12 EPSON S1F70000 Series Technical Manual Reset delays S1F76310M1A0 S1F76310M1K0 200 150 100 50 0 0.1 0.5 1.0 0.6 0.8 0.2 0.3 C ( µ F) t pd (msec) 0.7 0.4 R = 200 k Ω R = 100 k Ω 200 150 100 50 0 0.1 0.5 1.0 0.6 0.8 0.2 0.3 C ( µ F) t pd (msec) 0.7 0.4 R = 200 k Ω R = 100 k Ω S1F76310M1B0 S1F76310M1L0 and S1F76380M1 L0[...]

S1F76300 Series S1F70000 Series EPSON 4–13 Technical Manual S1F76300 Series Timing diagram Measurement circuit PACKAGE MARKINGS S1F76310, S1F76380 series device packages use the following markings. FUNCTIONAL DESCRIPTIONS Basic Voltage Booster Operation Tr1 switches ON and OFF at half the frequency of the clock pulses from the built-in RC oscilla[...]

S1F76300 Series 4–14 EPSON S1F70000 Series Technical Manual Reference voltage generator and output voltage regulator The reference voltage generator regulates V I1 to gener- ate a votlage for the voltage regulator and voltage detec- tion circuits. The voltage regulator regulates the boosted output votlage. This is determined by the level at point[...]

S1F76300 Series S1F70000 Series EPSON 4–15 Technical Manual S1F76300 Series Output voltage response compensation The S1F76380 series are provided with a response com- pensation input. A response compensation capacitor is connected between V CONT and V O , allowing the ripple voltage generated by the boosted output voltage to be suppressed to a mi[...]

S1F76300 Series 4–16 EPSON S1F70000 Series Technical Manual Inductor Use an inductor with low direct-current resistance and low losses. Leadless Pre-wound, leadless inductors using surface-mount technology are the most suitable for portable equipment and other space-critical applications. Drum coil Avoid using drum coils because their magnetic fi[...]

S1F76300 Series S1F70000 Series EPSON 4–17 Technical Manual S1F76300 Series Sample External Components Leadless Inductors TDK NKF453232 series magnetically shielded leadless inductors Inductance LQ frequency Device DC resistance Rated current Device ( µ H) Qmin (MHz) frequency ( Ω -Max.) (mA-Max.) (MHz-Min.) NLF453232-390K 39.0 ± 10% 50 2.52 [...]

S1F76300 Series 4–18 EPSON S1F70000 Series Technical Manual Drum coil inductors Taiyo Yuuden FL series micro-inductors Toroidal coil inductors Tohoku Metal Industries HP series toroidal coil inductors Device Inductance Direct current (mA) FL3H 0.22 µ H to 10 µ H 280 to 670 FL4H 0.47 µ H to 12 µ H 300 to 680 FL5H 10 µ H to 1mH 50 to 320 FL7H [...]

S1F76300 Series S1F70000 Series EPSON 4–19 Technical Manual S1F76300 Series Diodes Shindengen DINS4 Schottky barrier diodes Parameter Symbol Condition Rating Unit Min. Typ. Max. Forward voltage V F I F = 1.1A, — — 0.55 V pulse measurement Reverse current I R V R = V RM , —— 1 m A pulse measurement Junction-to-lead thermal resistance θ jl[...]

S1F76300 Series 4–20 EPSON S1F70000 Series Technical Manual Other Applications Voltage booster Combining an S1F76310 switching regulator with an S1F76610C/M DC/DC converter and voltage regulator creates the voltage booster circuit shown in the follow- ing figure. Potential levels are shown in the following figure. Although the circuit appears to [...]

S1F76300 Series S1F70000 Series EPSON 4–21 Technical Manual S1F76300 Series Output voltage adjustment To ensure stable output, any circuit that adjusts the out- put voltage must contain C1, R A and R B . To stop switching current from affecting V O , the circuit must also satisfy the condition I O < I R . The following figure summarizes the re[...]

S1F76300 Series 4–22 EPSON S1F70000 Series Technical Manual Voltage (V) Multiplication Output Crystal Product frequency Voltage Power-on Battery Response voltage Oscillator Package Input Output source detection clear backup compensation temperature Output characteristic S1F76330M1B0 1.5 3.00 Crystal No No No No No Yes SOP3-8pin (0.9 Min.) oscilla[...]

S1F76300 Series S1F70000 Series EPSON 4–23 Technical Manual S1F76300 Series PIN DESCRIPTIONS S1F76330 series Number Name Description 1C O Crystal drain 2C I Crystal gate 3 GND Ground 4V SW External inductor drive 5V O Output voltage 6C L O Oscillator output 7V I Step-up input voltage 8 PS Power save. See note. Note See standby mode in the functio[...]

S1F76300 Series 4–24 EPSON S1F70000 Series Technical Manual SPECIFICATIONS Absolute Maximum Ratings S1F76330 series Parameter Symbol Rating Unit Input voltage V I1 7V Output current I O 100 mA Output voltage V O 7V Power dissipation P D 200 (SOP) mW 300 (DIP) Operating temperature range Topr –30 to +85 ˚C Storage temperature range Tstg –65 t[...]

S1F76300 Series S1F70000 Series EPSON 4–25 Technical Manual S1F76300 Series Typical Performance Characteristics Standby current vs. ambient temperature Normalized frequency deviation vs. input voltage 1 Normalized frequency deviation vs. gate capacitance 1 Normalized frequency deviation vs. input voltage 2 Normalized frequency deviation vs. gate [...]

S1F76300 Series 4–26 EPSON S1F70000 Series Technical Manual Load characteristics S1F76330M1B0 Notes Inductor: TDK NLF453232-221k (220 µ H) Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSVB20J106M (10 µ F) Notes 1. V I1 = 1.5V 2. Inductor: TDK NLF453232 series Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSVB20J[...]

S1F76300 Series S1F70000 Series EPSON 4–27 Technical Manual S1F76300 Series FUNCTIONAL DESCRIPTIONS Basic Voltage Booster Operation Tr1 switches ON and OFF at the frequency of the clock pulses from the crystal oscillator. When the transistor is ON, the circuit stores energy in L. When it is OFF, this energy flows through D to charge C. The output[...]

S1F76300 Series 4–28 EPSON S1F70000 Series Technical Manual Powering up Ensure that V O is at least the minimum operating volt- age (0.9V) before switching on the booster circuit. One way to do this is to connect a capacitor between PS and GND so that the chip connects V O to V I when the power is applied for the first time. Inductor Use an induc[...]

S1F76300 Series S1F70000 Series EPSON 4–29 Technical Manual S1F76300 Series Diode Use a Schottky barrier diode with a high switching speed and low forward voltage drop, V F . Capacitor To minimize ripple voltages, use capacitors with a small equivalent direct-current resistance for smooth- ing. Sample External Components Leadless inductors TDK NL[...]

S1F76300 Series 4–30 EPSON S1F70000 Series Technical Manual Device Inductance ( µ H) Direct current (mA) FL3H 0.22 to 10 280 to 670 FL4H 0.47 to 12 300 to 680 FL5H 10 to 1000 50 to 320 FL7H 680 to 8200 50 to 170 FL9H 330 to 33000 50 to 500 FL11H 10000 to 150000 35 to 110 Device Rated current Inductance ( µ H) at 20kHz, 5V Diameter × height Wir[...]

S1F76300 Series S1F70000 Series EPSON 4–31 Technical Manual S1F76300 Series Parameter Symbol Conditions Rating Unit Min. Typ. Max. Forward voltage V F I F = 1.1A, — — 0.55 V pulse measurement Reverse current I R V R = V RM , —— 1 m A pulse measurement Junction-to-lead thermal resistance θ jl — — 23 ˚C/W Junction-to-ambient thermal r[...]

S1F76300 Series 4–32 EPSON S1F70000 Series Technical Manual Other Applications Voltage booster Combining an S1F76330M1B0 switching regulator with an S1F76610C/M DC/DC converter and voltage regulator creates the voltage booster circuit shown in the following figure. Potential levels are shown in the following figure. Although the circuit appears t[...]

S1F76300 Series S1F70000 Series EPSON 4–33 Technical Manual S1F76300 Series Output voltage adjustment To ensure stable output, any circuit that adjusts the out- put voltage must contain C1, R A and R B . To stop switching current from affecting V O , the circuit must also satisfy the condition I O < I R . The following figure summarizes the re[...]

S1F71100 Series 4–34 EPSON S1F70000 Series Technical Manual DESCRIPTION S1F71100 is a pulse width modulation (PWM) type step-down DC/DC converter control IC for which the CMOS process is used and to which a power transistor is connected outside. S1F71100 is composed of an os- cillator, a reference voltage circuit, an error amplifier, a PWM circui[...]

S1F71100 Series S1F70000 Series EPSON 4–35 Technical Manual S1F71100 Series PIN ASSIGNMENTS S SCAP POFFX V DD I SENSE V SS V O ERCAP SWO Inde x 1 2 3 4 8 7 6 5 PIN DESCRIPTIONS Pin No. Pin name Pin Type Description 1S SCAP — The soft start function is obtained when a capacitor is connected between the capacitor connection pin for setting soft s[...]

S1F71100 Series 4–36 EPSON S1F70000 Series Technical Manual FUNCTIONAL DESCRIPTIONS Description of Operation S1F71100 is a step-down switching regulator control IC of load current detection type pulse width modulation (PWM) system and is composed of an oscillator, a ref- erence voltage circuit, an error amplifier, a PWM cir- cuit, various protect[...]

S1F71100 Series S1F70000 Series EPSON 4–37 Technical Manual S1F71100 Series Power Off Function S1F71100 can control circuit operations according to external signal control. When the POFFX pin is con- nected to the V SS level, all circuits stop their operations and their powers are turned off. The current consump- tion at the power off state is le[...]

S1F71100 Series 4–38 EPSON S1F70000 Series Technical Manual ELECTRICAL CHARACTERISTICS DC Characteristics (S1F71100M0A0) Unless otherwise specified, Ta = 25˚C. Parameter Symbol Conditions Specification Unit Min. Typ. Max. Input supply voltage V DD — 3.3 — 12.0 V Output voltage V O V DD =5.0V 3.150 3.3 3.450 V Ta=–30 to +85˚C Current consu[...]

S1F71100 Series S1F70000 Series EPSON 4–39 Technical Manual S1F71100 Series EXAMPLE OF EXTERNAL CONNECTION OF REFERENCE CIRCUIT Example of Standard Circuit – + + – + – POFFX I SENSE SWO V SS V DD V DD CIN2 CIN1 SSCAP SSCAP soft star t V O ERCAP ERCAP phase compen- sation Low-v oltage protection circuit Error amplifier Driver Overcurrent pro[...]

S1F71100 Series 4–40 EPSON S1F70000 Series Technical Manual MECHANICAL DATA Lead type STD (SOP4–8pin STD) Symbol Dimension in Milimeters Dimension in Inches * Min. Nom. Max. Min. Nom. Max. E 4.8 5 5.2 (0.189) (0.197) (0.204) D 1 A 1.75 (0.069) A 1 0.15 (0.006) A 2 1.6 (0.063) e 1.27 (0.05) b 0.25 0.35 0.45 (0.010) (0.014) (0.017) C 0.05 0.15 0.[...]

S1F71200 Series S1F70000 Series EPSON 4–41 Technical Manual S1F71200 Series DESCRIPTION S1F71200 is a step-up/step-down DC/DC converter control IC for which the CMOS process is used and to which a power transistor is connected outside. S1F71200 is composed of an oscillator, a reference voltage circuit, an error amplifier, a PWM circuit, a se- rie[...]

S1F71200 Series 4–42 EPSON S1F70000 Series Technical Manual BLOCK DIAGRAM SWO V DD1 V DD2 EXO V O SRC I REF V REF SSC V SS SWC V C POFFX V SW I SENSE Oscillator PWM _ + + _ _ + Driver Overcurrent detection circuit Soft star t Series regulator Error amplifier Ref erence voltage circuit[...]

S1F71200 Series S1F70000 Series EPSON 4–43 Technical Manual S1F71200 Series PIN ASSIGNMENTS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Inde x SSOP2–16pin[...]

S1F71200 Series 4–44 EPSON S1F70000 Series Technical Manual PIN DESCRIPTIONS Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin name V DD1 V DD2 EXO V O SRC I REF V REF (N.C) POFFX V C SWC V SW V SS SSC I SENSE SWO Pin type Power supply Power supply Output — — Output Output — Input Input — — — — Input Output Power system V DD1 V DD2[...]

S1F71200 Series S1F70000 Series EPSON 4–45 Technical Manual S1F71200 Series Description of Operation S1F71200 is a switching regulator (step-up) and series regulator (step-down) control IC of pulse width modu- lation (PWM) system. When external parts such as transistor, inductor, capacitor, diode and resistor are connected, S1F71200 can constitut[...]

S1F71200 Series 4–46 EPSON S1F70000 Series Technical Manual Overcurrent Protection Circuit The overcurrent protection circuit functions when an overcurrent flows through the current detection resistor during the step-up operation and the voltage at the I SENSE pin rises over the set voltage value. When the overcurrent protection function works, t[...]

S1F71200 Series S1F70000 Series EPSON 4–47 Technical Manual S1F71200 Series ABSOLUTE MAXIMUM RATINGS Symbol V DD EXO V O SRC I REF V REF POFFX V C SWC V SW SSC I SENSE SWO P D T opr T stg T sol Applicable Pin V DD1 V DD2 EXO V O SRC I REF V REF POFFX V C SWC V SW SSC I SENSE SWO P D — — — Rating 15.0 V SS – 0.3 to V DD2 + 0.3 V SS – 0.3[...]

S1F71200 Series 4–48 EPSON S1F70000 Series Technical Manual ELECTRICAL CHARACTERISTICS S1F71200M0A0 (Output : 5.0V) DC Characteristics Unless otherwise specified, Ta = 25 ° C. Parameter Input supply voltage 1 Input supply voltage 2 Step-up set voltage Output voltage Operating time current consumption 1 (during step-up operation) Operating time c[...]

S1F71200 Series S1F70000 Series EPSON 4–49 Technical Manual S1F71200 Series * These values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. The characteristics vary with applicable parts. Select proper parts after sufficient evaluation. Min. — — — — 120 0.10 — Typ. — — 10[...]

S1F71200 Series 4–50 EPSON S1F70000 Series Technical Manual S1F71200M0B0 (Output : 3.3V) DC Characteristics Unless otherwise specified, Ta = 25 ° C. Min. 2.5 — — — 3.15 — — — — — –0.6 1.0 — — 0.8V DD1 — Max. 12.0 12.0 — — 3.45 250 30 200 40 1.0 — — — — — 0.2V DD1 Typ. — — 4.3 3.8 3.3 150 15 100 20 — 50[...]

S1F71200 Series S1F70000 Series EPSON 4–51 Technical Manual S1F71200 Series * These values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. The characteristics vary with applicable parts. Select proper par ts after sufficient evaluation. Rating Min. — — — — 120 0.10 — Typ. ?[...]

S1F71200 Series 4–52 EPSON S1F70000 Series Technical Manual EXAMPLE OF EXTERNAL CONNECTION OF REFERENCE CIRCUIT Basic Circuit SWO V DD1 V DD2 EXO V O SRC I REF V REF SSC V SS SWC V C POFFX V SW I SENSE PWM _ + + _ _ + Oscillator Driver Overcurrent detection circuit Soft star t Series regulator Error amplifier Ref erence voltage circuit Input volt[...]

S1F71200 Series S1F70000 Series EPSON 4–53 Technical Manual S1F71200 Series Example of Parts Connection SWO V DD1 S1F71200 V DD2 PNPT r EXO V O CV SW D L SRC CV OUT CV DD1 V BA T AC/DC I REF V REF RI REF CV REF SSC CSSC V SS SWC VC POFFX V SW I SENSE R SENSE N ch MOST r Input voltage Output voltage Parts examples CV DD1 47 µ F (Sanyo 16SA47M) Nc[...]

S1F71200 Series 4–54 EPSON S1F70000 Series Technical Manual MECHANICAL DATA Plastic SSOP2-16pin Reference 9 8 16 1 D D 1 E H E b A 1 A 2 A INDEX e θ 3 θ 2 L C R R 1 L 1 L 2 θ * for reference Symbol E D 1 A A 1 A 2 e b C θ L L 1 L 2 H E D θ 2 θ 3 R R 1 Min. 4.2 6.4 1.4 0.26 0.1 0 ° 0.3 5.9 Nom. 4.4 6.6 0.05 1.5 0.8 0.36 0.15 0.5 0.9 0.4 6.2[...]

5 . V olt a g e Detector[...]

S1F70000 Serie s EPSO N 5 –1 Technical Manual S1F77200Y Series S1F77200Y Series DESCRIPTION The S1F77200Y series products are non-adjusting volt- age detectors being developed utilizing he base of the CMOS silicon gate process. This voltage detector consists of the reference voltage circuit, voltage comparator, hysteresis circuit and out- put cir[...]

S1F77200Y Series 5 – 2 EPSO N S1F70000 Series Technical Manual LINEUP Table 5-1 Product Voltage detectable Output type Output phase Min. Typ. Max. Less than V DET V DET or above S1F77210Y1C0 2.10 2.15 2.20 CMOS Low level High level S1F77210Y1P0 2.20 2.25 2.30 CMOS Low level High level S1F77210Y1S0 2.30 2.35 2.40 CMOS Low level High level S1F77210[...]

S1F70000 Serie s EPSO N 5 –3 Technical Manual S1F77200Y Series S1F77200Y Series BLOCK DIAGRAM S1F77200Y1 * 0 Type S1F77200Y2 * 0 Type S1F77210Y1 * 0 Type S1F77210Y2 * 0 Type S1F77220Y1 * 0 Type S1F77220Y2 * 0 Type Note: A different code can be employed for the ones preceded by * marking depending on their detecting voltage specification. V DD (2p[...]

S1F77200Y Series 5 – 4 EPSO N S1F70000 Series Technical Manual PIN DESCRIPTIONS Pin No. Pin name Description 1 OUT Voltage detection output pin 2V DD Input voltage pin (positive side) 3V SS Input voltage pin (negative side) PIN ASSIGNMENTS SOT89-3pin FUNCTIONAL DESCRIPTIONS The S1F77200Y series has the circuit configuration as shown in the figure[...]

S1F70000 Serie s EPSO N 5 –5 Technical Manual S1F77200Y Series S1F77200Y Series The following figures show the input and output characteristics of the S1F77200Y series. [S1F772 * 0Y1 * 0 Type] S1F772 * 0Y2 * 0 Type Note: The above input/output characteristics assumes that the pull up resistor is connected to the output pin for the S1F77200Y serie[...]

S1F77200Y Series 5 – 6 EPSO N S1F70000 Series Technical Manual ELECTRIC CHARACTERISTICS S1F77210Y1P0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.20 2.25 2.30 V Hysteresis width [...]

S1F70000 Serie s EPSO N 5 –7 Technical Manual S1F77200Y Series S1F77200Y Series S1F77210Y1S0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.30 2.35 2.40 V Hysteresis width V HYS V [...]

S1F77200Y Series 5 – 8 EPSO N S1F70000 Series Technical Manual S1F77210Y1F0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.60 2.65 2.70 V Hysteresis width V HYS V HYS = V REL – V[...]

S1F70000 Serie s EPSO N 5 –9 Technical Manual S1F77200Y Series S1F77200Y Series S1F77210Y1G0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.93 3.00 3.07 V Hysteresis width V HYS V [...]

S1F77200Y Series 5 –1 0 EPSO N S1F70000 Series Technical Manual S1F77210Y1 30 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 3.43 3.50 3.57 V Hysteresis width V HYS V HYS = V REL –[...]

S1F70000 Serie s EPSO N 5 –11 Technical Manual S1F77200Y Series S1F77200Y Series S1F77210Y1M0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 4.10 4.20 4.30 V Hysteresis width V HYS V[...]

S1F77200Y Series 5 –1 2 EPSO N S1F70000 Series Technical Manual S1F77210Y1 20 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 4.50 4.60 4.70 V Hysteresis width V HYS V HYS = V REL –[...]

S1F70000 Serie s EPSO N 5 –13 Technical Manual S1F77200Y Series S1F77200Y Series S1F77210Y1L0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 4.90 5.00 5.10 V Hysteresis width V HYS V[...]

S1F77200Y Series 5 –1 4 EPSO N S1F70000 Series Technical Manual S1F77210Y1 F0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.60 2.65 2.70 V Hysteresis width V HYS V HYS = V REL –[...]

S1F70000 Serie s EPSO N 5 –15 Technical Manual S1F77200Y Series S1F77200Y Series S1F77200Y1F0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 1.50 — 12.0 V Detection voltage V DET Ta = 25 ° C 2.60 2.65 2.70 V Hysteresis width V HYS V[...]

S1F77200Y Series 5 –1 6 EPSO N S1F70000 Series Technical Manual S1F77200Y1 N0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 0.80 — 10.0 V Detection voltage V DET Ta = 25 ° C 1.85 1.90 1.95 V Hysteresis width V HYS V HYS = V REL –[...]

S1F70000 Serie s EPSO N 5 –17 Technical Manual S1F77200Y Series S1F77200Y Series S1F77200Y1Y0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 0.80 — 10.0 V Detection voltage V DET Ta = 25 ° C 1.05 1.10 1.15 V Hysteresis width V HYS V[...]

S1F77200Y Series 5 –1 8 EPSO N S1F70000 Series Technical Manual S1F77200Y1 V0 (Ta = –30 ° C to +85 ° C is assumed except where otherwise specified.) Parameter Symbol Conditions (V SS = 0.0V) Min. Typ. Max. Unit Operating voltage V DD 0.80 — 10.0 V Detection voltage V DET Ta = 25 ° C 0.90 0.95 1.00 V Hysteresis width V HYS V HYS = V REL –[...]

S1F70000 Serie s EPSO N 5 –19 Technical Manual S1F77200Y Series S1F77200Y Series EXAMPLES OF EXTERNAL CONNECTION (3pin) (2pin) (1pin) V DD V SS OUT S1F77210Y Series Input voltage (+) Input voltage (—) Voltage detection output (3pin) (2pin) (1pin) OUT Input voltage (+) Input voltage (—) Voltage detection output Power supply for pull up resisto[...]

S1F77200Y Series 5 –2 0 EPSO N S1F70000 Series Technical Manual SAMPLE CIRCUITS (S1F77210Y S eries ) CR timer circuit When the S1F77210Y circuit configured as shown in Figure 5-14, it can be used as a CR timer circuit. Figure 5-14 CR timer circuit Battery backup circuit The following is an example of the supply voltage switching circuit for the b[...]

S1F70000 Serie s EPSO N 5 –21 Technical Manual S1F77200Y Series S1F77200Y Series SAMPLE CIRCUITS (S1F77200Y Series) CR timer circuit When the S1F77200Y circuit is configured as shown in Figure 5-16, it can be used as a CR timer circuit. Figure 5-16 CR timer circuit Battery backup circuit The following is an example of the supply voltage switching[...]

S1F77200Y Series 5 –2 2 EPSO N S1F70000 Series Technical Manual S1F 77210Y PRECAUTIONS Short cut current on the S1F77210 (CMOS output voltage detector) Since the S1F77200Y series employs CMOS output, as an input voltage nears the detection voltage range, short cut current is flown between V DD and V SS . The short cut current is voltage sensitive[...]

6 . Appendix[...]

S1F70000 Serie s EPSO N 6 –1 Technical Manual Appendix Appendix ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are the maximum physical and electrical ratings of a device beyond which perfor- mance degradation or damage will occur. Always check circuit conditions before using a device to avoid exceeding these ratings. Typically, absolute maxim[...]

6 – 2 EPSO N S1F70000 Series Technical Manual Appendix Symbol Parameter I OPR2 Stabilization circuit power dissipation I Q Quiescent current I R Reverse current I SWQ Switching transistor leakage current K I Output voltage temperature gradient P D Power dissipation P eff Voltage multiplication efficiency R BSON Backup switch ON resistance R L Loa[...]

S1F70000 Serie s EPSO N 6 –3 Technical Manual Appendix Appendix Symbol Parameter V I Input voltage V IH High-level input voltage V IL Low-level input voltage V I Input voltage V O Output voltage V off Input offset voltage V op+ Input voltage range V OPMAX Maximum output voltage V OPMIN Minimum output voltage V REF Reference voltage V REG Output v[...]

6 – 4 EPSO N S1F70000 Series Technical Manual Appendix MECHANICAL DATA Plastic DIP–8pin Plastic QFP5–48pin Plastic SOP3–8pin Plastic DIP–14pin Plastic QFP12-48pin Plastic SOP4–8pin Unit: mm Unit: mm Unit: mm Unit: mm Unit: mm Unit: mm 9.7 Max. 8 5 14 INDEX 9.1 ± 0.1 6.4 ± 0.1 1.3 0.8 ± 0.1 4.4 ± 0.1 3.0 Min. 0.46 ± 0.1 2.54 ± 0.25[...]

S1F70000 Serie s EPSO N 6 –5 Technical Manual Appendix Appendix Plastic SOP5–14pin Plastic SOP2-24pin Plastic SSOP2–16pin SOT 89–3pin Plastic SOP2–28pin Plastic SSOP1–20pin Unit: mm Unit: mm Unit: mm Unit: mm Unit: mm Unit: mm 8 14 7 1 INDEX 1.27 ± 0.1 6.8 10.2 ± 0.2 5.5 ± 0.2 0.4 ± 0.1 2.2 Max. 0.15 ± 0.1 0.4 8.0 ± 0.3 2.3 10.5 M[...]

6 – 6 EPSO N S1F70000 Series Technical Manual Appendix TAPING INFORMATION T he emboss carrier taping standard is shown in the following table and figure. This standard conforms to Dimension code Dimensions/angles (mm/ ° ) A 5.0 B 4.6 D 1.5 +0.1, –0.05 E 1.50 ± 0.1 F 5.65 ± 0.05 P1 8.0 ± 0.1 P0 4.0 ± 0.1 Dimension code Dimensions/angles (mm[...]

S1F70000 Serie s EPSO N 6 –7 Technical Manual Appendix Appendix Dimension code Dimensions (mm) A 178 ± 2.0 B 80 ± 1.0 C 13.0 ± 0.5 D 21.0 ± 1.0 E 2.0 ± 0.5 W 14.0 (See note.) W1 1.5 ± 0.1 W2 17 (See note.) r 1.0 REEL SPECIFICATIONS The reel specifications are shown in the following table and figure. The reel is made of paperboard. Note W an[...]

6 – 8 EPSO N S1F70000 Series Technical Manual Appendix TAPING INFORMATION T he emboss carrier taping standard is shown in the following table and figure. This standard conforms to the EIAJ RCI009B electronic parts taping specification. Each tape holds 2,000 devices. Dimension code Dimensions/angles (mm/ ° ) P2 2.0 ± 0.05 T 0.3 ± 0.05 T2 2.5 W [...]

S1F70000 Serie s EPSO N 6 –9 Technical Manual Appendix Appendix REEL SPECIFICATIONS The reel specifications are shown in the following table and figure. The reel is made of paperboard. Dimension code Dimensions (mm) A 330 ± 2.0 B 80 ± 1.0 C 13.0 ± 0.5 D 21.0 ± 0.5 E 2.0 ± 0.5 W 15.4 ± 1.0 (See note.) W1 2.0 ± 0.5 W2 23.4 (See note.) r 1.0 [...]

6 –1 0 EPSO N S1F70000 Series Technical Manual Appendix Type F product are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Index mark Travel direction[...]

S1F70000 Serie s EPSO N 6 –11 Technical Manual Appendix Appendix TAPING INFORMATION The emboss carrier taping standard is shown in the following table and figure. This standard conforms to Dimension code Dimensions (mm/ ° ) P2 2.0 ± 0.1 T 0.3 ± 0.05 T2 3.0 W 16.0 ± 0.3 W1 13.5 blanks. This does not apply to the tape leader and trailer. Dimens[...]

6 –1 2 EPSO N S1F70000 Series Technical Manual Appendix REEL SPECIFICATIONS The reel specifications are shown in the following table and figure. The reel is made of paperboard. Note W and W2 are measured at the reel core. DEVICE POSITIONING Type B products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in[...]

S1F70000 Serie s EPSO N 6 –13 Technical Manual Appendix Appendix Type F products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Index mark Travel direction[...]

6 –1 4 EPSO N S1F70000 Series Technical Manual Appendix TAPING INFORMATION The emboss carrier taping standard is shown in the following table and figure. This standard conforms to Dimension code Dimensions (mm) P0 4.0 ± 0.1 P2 2.0 ± 0.1 T 0.3 ± 0.05 T2 3.0 ± 0.1 W 24 ± 0.2 W1 21.5 Typ. trailer. The tape tension should be approximately 10 N ([...]

S1F70000 Serie s EPSO N 6 –15 Technical Manual Appendix Appendix Tape configuration The tape configuration is shown in the following figure. Blank sections are provided as a leader and trailer, with 1,000 SOP2 packages fitted into the com- ponent mounting section between them. At the begin- ning of the leader section there is an extra section of [...]

6 –1 6 EPSO N S1F70000 Series Technical Manual Appendix REEL SPECIFICATIONS The reel specifications are shown in the following table and figure. The reel is made of conductive PVC. Note W and W2 are measured at the reel core. DEVICE POSITIONING Type B products are positioned so that the index mark is on the sprocket hole side of the tape, as show[...]

S1F70000 Serie s EPSO N 6 –17 Technical Manual Appendix Appendix Type F products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Index mark Travel direction[...]

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NO TICE No part of this material may be reproduced or duplicated in any from or by any means without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notics. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its app[...]

MF302 - 11 T echnical Manual S1F70000 Series T echnical Manual IEEE1394 Controller S1R77801F00A T echnical Manual S1F70000 Series EPSON Electronic Devices Website ELECTRONIC DEVICES MARKETING DIVISION First issue November,1990 U Revised July,2002 in Japan H B 4.5mm T echnical Manual POWER SUPPLY IC S1F70000 Series http://www.epson.co.jp/device/ Thi[...]