Product details

Audio input type Analog Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 4 SNR (dB) 105 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 16 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26 PSRR (dB) 70 Operating temperature range (C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 4 SNR (dB) 105 THD + N @ 1 kHz (%) 0.1 Iq (Typ) (mA) 16 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26 PSRR (dB) 70 Operating temperature range (C) -40 to 85
VQFN (RHB) 32 25 mm² 5 x 5
  • Supports Multiple Output Configurations
    • 2 × 4 W into a 8-Ω BTL Load at 7.4 V (TPA3131D2)
    • 2 × 25 W into a 8-Ω BTL Load at 19 V (TPA3132D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Automotive Load-Dump Compliant
  • Efficient Class-D Operation
    • >90% Power Efficiency Combined With Low Idle Loss
      for Heat Sink free Operation
    • Advanced Modulation Schemes
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • Up to 1.2-MHz Switching Frequency
  • Feedback Power Stage Architecture With High PSRR Reduces
    PSU Requirements
  • Programmable Power Limit
  • Differential and Single-Ended Inputs
  • Stereo and Mono Mode With Single-Filter Mono Configuration
  • Single Power Supply Reduces Component Count
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage,
    Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Package
    • 32-Pin VQFN Pad-Down
  • –40°C to 85°C Ambient Temperature Range
  • Supports Multiple Output Configurations
    • 2 × 4 W into a 8-Ω BTL Load at 7.4 V (TPA3131D2)
    • 2 × 25 W into a 8-Ω BTL Load at 19 V (TPA3132D2)
  • Wide Voltage Range: 4.5 V to 26 V
  • Automotive Load-Dump Compliant
  • Efficient Class-D Operation
    • >90% Power Efficiency Combined With Low Idle Loss
      for Heat Sink free Operation
    • Advanced Modulation Schemes
  • Multiple Switching Frequencies
    • AM Avoidance
    • Master and Slave Synchronization
    • Up to 1.2-MHz Switching Frequency
  • Feedback Power Stage Architecture With High PSRR Reduces
    PSU Requirements
  • Programmable Power Limit
  • Differential and Single-Ended Inputs
  • Stereo and Mono Mode With Single-Filter Mono Configuration
  • Single Power Supply Reduces Component Count
  • Integrated Self-Protection Circuits Including Overvoltage, Undervoltage,
    Overtemperature, DC-Detect, and Short Circuit With Error Reporting
  • Thermally Enhanced Package
    • 32-Pin VQFN Pad-Down
  • –40°C to 85°C Ambient Temperature Range

The TPA313xD2 are efficient, stereo digital amplifier power stages for driving speakers with up to 2×42W/4Ω peak power. TPA3131/32D2 operates heatsink-free with cooling to PCB through the bottom side PowerPAD with sustained output power from 2 × 4 W / 8 Ω (TPA3131D2) to 2 × 25 W / 8 Ω (TPA3132D2).

The TPA313xD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of Master and Slave synchronization, making it possible to synchronize multiple devices.

The TPA313xD2 are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

For feature compatible devices see: PowerPAD up device 2 × 50-W TPA3116D2, PowerPAD down 2 × 15-W TPA3130D2 and 2 × 30-W TPA3118D2.

The TPA313xD2 are efficient, stereo digital amplifier power stages for driving speakers with up to 2×42W/4Ω peak power. TPA3131/32D2 operates heatsink-free with cooling to PCB through the bottom side PowerPAD with sustained output power from 2 × 4 W / 8 Ω (TPA3131D2) to 2 × 25 W / 8 Ω (TPA3132D2).

The TPA313xD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of Master and Slave synchronization, making it possible to synchronize multiple devices.

The TPA313xD2 are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.

For feature compatible devices see: PowerPAD up device 2 × 50-W TPA3116D2, PowerPAD down 2 × 15-W TPA3130D2 and 2 × 30-W TPA3118D2.

Download

Next Generation 30-W, Stereo, Analog Input Class-D Audio Amplifier:  TPA3118D2

Next Generation 30-W, Stereo Class-D Amplifier with Low-Idle Power Dissipation (Analog-In) for Battery Operated Systems Available:  TPA3128D2

Technical documentation

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Type Title Date
* Data sheet TPA313xD2 4-W, 25-W Filter-Free Class-D Stereo Amplifier With AM Avoidance datasheet (Rev. B) 16 Jan 2015
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
User guide TPA3132D2 EVM User's Guide 26 Jun 2013
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPA3132D2EVM — TPA3132D2EVM for 25W Class-D Speaker Amplifier

The TPA3132D2EVM is a stereo analog input, Class-D speaker amplifier IC for driving speakers with output power of 2x25W into 8Ω. TPA3132D2 operates heat sink-free with cooling to the PCB through the PowerPAD™ package. The TPA3132 has an advanced oscillator/PLL circuit which employs a (...)

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Simulation model

TPA3132D2 Unencrypted PSpice Model Package (Rev. A)

SLOM368A.ZIP (19 KB) - PSpice Model
Simulation model

TPA3132D2 TINA-TI Average Spice Model

SLOM369.ZIP (34 KB) - TINA-TI Spice Model
Simulation model

TPA3132D2 TINA-TI Average Reference Design

SLOM370.TSC (104 KB) - TINA-TI Reference Design
Simulation model

TPA3132D2 Unencrypted PSpice Average Model Package (Rev. A)

SLOM371A.ZIP (20 KB) - PSpice Model
Simulation model

TPA3132D2 TINA-TI Reference Design

SLOM372.TSC (89 KB) - TINA-TI Reference Design
Simulation model

TPA3132D2 TINA-TI Spice Model

SLOM373.ZIP (40 KB) - TINA-TI Spice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Gerber file

TPA3131-32-33D2EVM RevA Gerber Files

SLOC294.ZIP (477 KB)
Package Pins Download
VQFN (RHB) 32 View options

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