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Fairchild RC4194 manual

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Table of contents for the manual

  • Page 1

    www .fairc hildsemi.com Features • Simultaneously adjustable outputs with one resistor to ± 42V • Load current – ± 200 mA with 0.04% load regulation Description The RC/RM4194 are dual polarity tracking regulators designed to provide balanced or unbalanced positi ve and negati ve output v oltages at currents to 200 mA. A single external resi[...]

  • Page 2

    PRODUCT SPECIFICATION RC4194 2 Absolute Maxim um Ratings (bey ond which the device ma y be damaged) 1 Note: 1. Functional operation under any of these conditions is NOT implied. P arameter Min T yp Max Units Supply Voltage RC4194 ± 35 V RM4194 ± 45 V Supply Input to Output Voltage Differential RC4194 ± 35 V RM4194 ± 45 V Load Current PDIP 100 m[...]

  • Page 3

    RC4194 PRODUCT SPECIFICATION 3 Operating Conditions Electrical Characteristics ( ± 5 £ V OUT £ V MAX ; – V IN £ -8V ; I L = ± 1mA; RM4194: -55 ° C £ T j £ +125 ° C; RC4194: 0 ° C £ T j £ +70 ° C unless otherwise specified) Notes: 1. Measured as (mA) 2. Output voltage temperature drift guaranteed by design. 3. The current drain will [...]

  • Page 4

    PRODUCT SPECIFICATION RC4194 4 T ypical Perf ormance Characteristics Figure 1. Ripple Rejection vs. Frequency Figure 2. Load Regulation vs. Load Current Figure 3. Output Voltage Tracking vs. Temperature 65-0201 Ripple Rejection (dB) F (Hz) 150 130 110 90 70 50 30 10 0 100 1K 10K 100K V OUT = ± 15V 65-0202 T j = +125 ¡ C T j = +25 ¡ C 0.06 0.05 0[...]

  • Page 5

    RC4194 PRODUCT SPECIFICATION 5 T ypical Applications Figure 4. Unbalanced Output Voltage — Comparator Application Figure 5. High Output Application 0.01 µ F S -V S +V S +V -V S 71.5K 0.01 µ F R SET Comp- Gnd RM4194 Comp+ R -V Bal +V OUT OUT 0 0 R A R B R 4.7 µ F 4805 4.7 µ F** +V OUT To Additional Comparators (Typically 15 RC4805s) -V = -5V T[...]

  • Page 6

    PRODUCT SPECIFICATION RC4194 6 T ypical Applications (continued) Figure 6. Balanced Output Voltage — Op Amp Application Figure 7. Digitally Controlled Dual 200 mA Voltage Regulator 0.001 µ F S -V S +V S +V -V S 71.5K 0.001 µ F R SET Comp- Gnd 4194 Comp+ R -V +V OUT OUT 0 0 R 4.7 µ F 741 4.7 µ F** +V = +15V OUT To Additional Op Amps (Typically[...]

  • Page 7

    RC4194 PRODUCT SPECIFICATION 7 RC4194 Switchab le P ower Suppl y The outputs of the RC4194 can be simultaneously switched on or off under logic control as sho wn in Figure 8. In the “off” state, the outputs will be forced to a minimum v oltage, or about ± 20 mV , rather than becoming open-circuit. The turn-on time, with the outputs programmed [...]

  • Page 8

    PRODUCT SPECIFICATION RC4194 8 Figure 9. RC4194 Recommended Compensation 4194 0.001 µ F Comp+ R 0 Comp- R 0 R SET R SET 0.01 µ F 0.01 µ F 0.001 µ F 4.7 µ F * 65-4201 +V S –V S +V S –V S +V OUT –V OUT +V OUT –V OUT Note: All Capacitors are Ceramic Disc Except * = Solid Tantalum All compensation and bypass caps should hav e short leads, [...]

  • Page 9

    RC4194 PRODUCT SPECIFICATION 9 If a small signal silicon diode is used, it will clamp the nega- tiv e output voltage at about +0.55V . A Schottky barrier or germanium device w ould clamp the voltage at about +0.3V . Another cure which will keep the negati ve output negati ve at all times is the 1 m W resistor connected between the +15V output and t[...]

  • Page 10

    PRODUCT SPECIFICATION RC4194 10 T able 1. Commercial Heatsink Selection Guide No attempt has been made to provide a complete list of all heatsink manuf acturers. This list is only representative . Staver Co., Inc.: 41-51 N Saxon Ave., Bay Shore, NY 11706 IERC: 135 W Magnolia Blvd., Burbank, CA 91502 Thermalloy: P.O. Box 34829, 2021 W Valley View Ln[...]

  • Page 11

    RC4194 PRODUCT SPECIFICATION 11 Simplified Schematic Dia gram 65-0198 Q28 Q30 Q29 Q33 Q34 Q37 Q36 Q35 Q38 Comp+ (7) R18 10K R4 500 R5 25K Q47 Q16 Q13 Q11 Q10 Q9 Q12 C1 10 pF R6 30K Q8 Q2 Q4 Q3 Q1 R1 12K Q6 R2 680 R3 5000 R7 5000 Q5 Q7 (3) R (2) R R11 3900 R10 1650 Q19 Q22 Q23 Q24 Q17 Q21 Q20 Q44 R8 5000 Q31 Q25 Q26 8 k W 200 W R14 3000 W Q46 Q18 Q[...]

  • Page 12

    PRODUCT SPECIFICATION RC4194 12 Mechanical Dimensions 9-Lead Metal Can IC Header P ackage S r2 øb øp F øD1 øD A q r1 e e1 Notes: 1. All leads—increase maximum limit by .003 (.08mm) when lead finish is applied. A .250 .340 6.35 8.64 Symbol Inches Min. Max. Min. Max. Millimeters Notes øb .028 .034 .71 .86 øD — .620 — 15.75 øD1 .470 .500 [...]

  • Page 13

    RC4194 PRODUCT SPECIFICATION 13 Mechanical Dimensions (contin ued) 14-Lead Ceramic DIP P ackage A — .200 — 5.08 Symbol Inches Min. Max. Min. Max. Millimeters Notes b1 .014 .023 .36 .58 .065 1.65 b2 .045 1.14 c1 .008 .015 .20 .38 E .220 .310 5.59 7.87 e .100 BSC 2.54 BSC L .125 .200 3.18 5.08 .015 .060 .38 1.52 .005 — .13 — 3 6 8 4 8 2 4 5, [...]

  • Page 14

    PRODUCT SPECIFICATION RC4194 14 Mechanical Dimensions (contin ued) 14-Lead Plastic DIP P ackage D B1 e B E1 A1 A L 7 8 14 1 E eB C D1 A — .210 — 5.33 Symbol Inches Min. Max. Min. Max. Millimeters Notes A1 .015 — .38 — .022 .56 B .014 .36 .195 4.95 A2 .115 2.93 B1 .045 .070 1.14 1.78 D .725 .795 18.42 20.19 .300 .325 7.62 8.26 E eB — .430 [...]

  • Page 15

    PRODUCT SPECIFICATION RC4194 5/20/98 0.0m 001 Stock#DS30004194 Ó 1998 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1 . L[...]