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Texas Instruments TPA3008D2 manual

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Table of contents for the manual

  • Page 1

    www.ti.com FEATURES DESCRIPTION APPLICATIONS 10 µ F 220 nF 220 nF PVCC PVCC 220 nF 220 nF PVCC PVCC 220 pF Left Differential Inputs Right Differential Inputs Shutdown/Mute Gain Control BSLP PVCCL PVCCL LOUTP LOUTP PGNDL PGNDL LOUTN LOUTN PVCCL PVCCL BSLN TP A3008D2 VCLAMPR SHUTDOWN V2P5 RINP LINN LINP AVDDREF NC GAIN0 GAIN1 NC NC AVDD AGND COSC RO[...]

  • Page 2

    www.ti.com ABSOLUTE MAXIMUM RATINGS DISSIPATION RATING TABLE RECOMMENDED OPERATING CONDITIONS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gat[...]

  • Page 3

    www.ti.com AVAILABLE OPTIONS DC ELECTRICAL CHARACTERISTICS AC ELECTRICAL CHARACTERISTICS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 T A PACKAGED DEVICE 48-PIN HTQFP (PHP) (1) -40 ° C to 85 ° C TPA3008D2PHP (1) The PHP package is available taped and reeled. To order a taped and reeled part, add the suffix R to the part number (e.g., TPA[...]

  • Page 4

    www.ti.com Biases and References TTL Input Buf fer (VCC Compl) Start-up and Protection Logic SC Detect Thermal VDDok RINP RINN Ramp Generator COSC ROSC VCCok 5-V LDO A VCC A VDD A VDD VDD and PWM Mode Logic Gain Adj. Gain Control Deglitch and PWM Mode Logic Gain Adj. LINP LINN Gate Drive VClamp Gen Gate Drive PVCC BSRP PVCCR(2) ROUTP(2) PGNDR PGNDR[...]

  • Page 5

    www.ti.com 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 48 47 46 45 44 43 42 41 40 39 38 37 1 2 3 4 5 6 7 8 9 10 1 1 12 BSRN PVCCR PVCCR ROUTN ROUTN PGNDR PGNDR ROUTP ROUTP PVCCR PVCCR BSRP VCLAMPR NC NC NC NC AGND COSC ROSC AGND VCLAMPL SHUTDOWN RINN RINP V2P5 LINP LINN NC GAIN0 GAIN1 F AUL T NC BSLN PVCCL PVCCL LOUTN LO[...]

  • Page 6

    www.ti.com TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 TERMINAL FUNCTIONS PIN NAME PIN NUMBER I/O DESCRIPTION AGND 26, 30 - Analog ground for digital/analog cells in core AV CC 33 - High-voltage analog power supply, not connected internally to PVCCR or PVCCL 5-V Regulated output for use by internal cells and GAIN0, GAIN1 pins only. Not AV[...]

  • Page 7

    www.ti.com TYPICAL CHARACTERISTICS 0.01 20 20 k 100 1 k 10 k THD+N −T otal Harmonic Distortion + Noise − % V CC = 18 V , R L = 16  Gain = 21.6 dB f − Frequency − Hz 10 0.1 P O = 2.5 W P O = 0.5 W P O = 1 W 1 0.005 10 0.01 0.1 20 20 k 100 1 k 10 k P O = 2.5 W THD+N −T otal Harmonic Distortion + Noise − % V CC = 12 V , R L = 16  [...]

  • Page 8

    www.ti.com 0.005 10 0.01 0.1 20 20 k 100 1 k 10 k P O = 5 W THD+N −T otal Harmonic Distortion + Noise − % V CC = 18 V , R L = 8  , Gain = 21.6 dB f − Frequency − Hz P O = 1 W P O = 2.5 W 1 0.01 0.1 10 20 20 k 100 1 k 10 k THD+N −T otal Harmonic Distortion + Noise − % V CC = 12 V , R L = 8  Gain = 21.6 dB f − Frequency − Hz P O[...]

  • Page 9

    www.ti.com 28 24 20 16 10 100 1k Gain − dB 32 36 f − Frequency − Hz 40 10k 12 8 4 0 80k V CC = 12 V , R L = 8 Ω, Gain = 32 dB 33 kHz, RC LPF Gain Phase Phase − 50 0 100 −150  −100 −50 150 0 1 2 3 4 5 6 7 8 9 10 1 1 12 8 9 10 1 1 12 13 14 15 16 17 18 P O − Output Power − W THD+N = 10% THD+N = 1% R L = 16  V CC − Supply V [...]

  • Page 10

    www.ti.com 0 10 20 30 40 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 Efficiency − % 16  8  P O − T otal Output Power − W 1 1 12 V CC = 12 V , LC Filter , Resistive Load, Stereo Operation 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 2 4 6 8 10 12 P O − T otal Output Power − W 1.6 1.8 2.0 14 16 18 20 LC Filter , Resistive Load, Stereo Operation − Su[...]

  • Page 11

    www.ti.com −70 −60 −50 −40 −30 −20 −10 0 100 1 k 10 k 20 V CC = 12 V , Gain = 15.6 dB, R L = 8  Output Referred f − Frequency − Hz CMRR − Common-Mode Rejection Ratio − dB 20 k TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 COMMON-MODE REJECTION RATIO vs FREQUENCY Figure 15. 11[...]

  • Page 12

    www.ti.com APPLICATION INFORMATION 220 nF 220 nF PVCC PVCC 220 nF 220 nF PVCC PVCC 220 pF Right Differential Inputs Shutdown/Mute BSLP PVCCL PVCCL LOUTP LOUTP PGNDL PGNDL LOUTN LOUTN PVCCL PVCCL BSLN TP A3008D2 VCLAMPR SHUTDOWN V2P5 RINP LINN LINP A VDDREF NC GAIN0 GAIN1 NC NC A VDD AGND COSC ROSC A VCC VCLAMPL BSRP PVCCR PVCCR ROUTP ROUTP PGNDR PG[...]

  • Page 13

    www.ti.com CLASS-D OPERATION Traditional Class-D Modulation Scheme 0 V −12 V +12 V Current OUTP Differential V oltage Across Load OUTN TPA3008D2 Modulation Scheme TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) This section focuses on the class-D operation of the TPA3008D2. The traditional class-D modulat[...]

  • Page 14

    www.ti.com 0 V −12 V +12 V Current OUTP OUTN Differential V oltage Across Load 0 V −12 V +12 V Current OUTP OUTN Differential V oltage Across Load Output = 0 V Output > 0 V Efficiency: LC Filter Required With the Traditional Class-D Modulation Scheme TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) Fi[...]

  • Page 15

    www.ti.com Effects of Applying a Square Wave Into a Speaker Efficiency (t heoretical, %)  R L  R L  r ds(on)   100%  8 (8  1.3)  100%  86% (1) P (total)  P O Efficiency  8.5 W 0.86  9.88 W (2) Other losses  P (tot al) (measured)  P (total) (theoretical)  10.49  9.88  0.61 W (3) P (dis)  0.61 W ?[...]

  • Page 16

    www.ti.com 0.1 µ F 0.1 µ F 0.47 µ F 33 µ H 33 µ H OUTP OUTN L 1 L 2 C 1 C 2 C 3 1 nF Ferrite Chip Bead OUTP OUTN Ferrite Chip Bead 1 nF Gain setting via GAIN0 and GAIN1 inputs INPUT RESISTANCE TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 APPLICATION INFORMATION (continued) Figure 19. Typical LC Output Filter, Cutoff Frequency of 27 kH[...]

  • Page 17

    www.ti.com C i IN Z i Z f Inpu t Signal f  1 2  Z i C i (5) INPUT CAPACITOR, C I f c  1 2  Z i C i −3 dB f c (6) C i  1 2  Z i f c (7) Power Supply Decoupling,C S TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The -3-dB frequency can be calculated using Equation 5. Use Table 1 for Z i values. In the typical application, a[...]

  • Page 18

    www.ti.com BSN and BSP Capacitors VCLAMP Capacitors Internal Regulated 5-V Supply (AV DD ) Differential Input SHUTDOWN OPERATION USING LOW-ESR CAPACITORS TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The full H-bridge output stages use only NMOS transistors. Therefore, they require bootstrap capacitors for the high side of each output to tu[...]

  • Page 19

    www.ti.com SHORT-CIRCUIT PROTECTION AND AUTOMATIC RECOVERY FEATURE THERMAL PROTECTION PRINTED-CIRCUIT BOARD (PCB) LAYOUT TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 The TPA3008D2 has short-circuit protection circuitry on the outputs that prevents damage to the device during output-to-output shorts, output-to-GND shorts, and output-to-V CC[...]

  • Page 20

    www.ti.com BASIC MEASUREMENT SYSTEM TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 This application note focuses on methods that use the basic equipment listed below: • Audio analyzer or spectrum analyzer • Digital multimeter (DMM) • Oscilloscope • Twisted-pair wires • Signal generator • Power resistor(s) • Linear regulated pow[...]

  • Page 21

    www.ti.com Analyzer 20 Hz − 20 kHz (a) Basic Class−AB AP A Signal Generator Power Supply Analyzer 20 Hz − 20 kHz R L (b) Filter-Free and T raditional Class-D Class-D AP A Signal Generator Power Supply R L Low-Pass RC Filter Low-Pass RC Filter (A) (A) For ef ficiency measurements with filter-free class-D, R L should be an inductive load like a[...]

  • Page 22

    www.ti.com C IN Audio Power Amplifier Generator Low−Pass RC Filter C IN R GEN R GEN R IN R IN V GEN R OUT R OUT Analyzer R ANA R ANA C ANA Low−Pass RC Filter R L C ANA T wisted-Pair Wire Evaluation Module T wisted-Pair Wire CLASS-D RC LOW-PASS FILTER TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 Figure 22. Differential Input, BTL Output[...]

  • Page 23

    www.ti.com R FIL T R L R FIL T C FIL T V L = V IN V OUT R ANA C ANA R ANA C ANA C FIL T T o AP A GND AP Analyzer Input RC Low-Pass Filters Load  V OUT V IN    R ANA R ANA  R FILT  1  j    O  (8) f C  2   f MAX (9) C FILT  1 2   f C  R FILT (10) TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 20[...]

  • Page 24

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  • Page 25

    PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) TPA3008D2PHP ACTIVE HTQFP PHP 48 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HR TPA3008D2PHPG4 ACTIVE HTQFP PHP 48 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-4-260C-72 HR TPA3008D2PHPR AC[...]

  • Page 26

    TAPE AND REEL BOX INFORMATION Device Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant TPA3008D2PHPR PHP 48 SITE 60 330 16 9.6 9.6 1.5 12 16 Q2 PACKAGE MATERIALS INFORMATION www.ti.com 5-Oct-2007 Pack Materials-Page 1[...]

  • Page 27

    Device Package Pins Site Length (mm) Width (mm) Height (mm) TPA3008D2PHPR PHP 48 SITE 60 346.0 346.0 33.0 PACKAGE MATERIALS INFORMATION www.ti.com 5-Oct-2007 Pack Materials-Page 2[...]

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  • Page 31

    IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders[...]