TPA3131D2

ACTIVE

4-W stereo, 8-W mono, 4.5- to 26-V supply, analog input Class-D audio amplifier w/ filter free

Top

Product details

Parameters

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) 25 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 Power to parallel bridge tied load (Max) (W) 15 PSRR (dB) 70 Operating temperature range (C) -40 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Speaker amps

Features

  • 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
open-in-new Find other Speaker amps

Description

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.

open-in-new Find other Speaker amps
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet TPA313xD2 4-W, 25-W Filter-Free Class-D Stereo Amplifier With AM Avoidance datasheet (Rev. B) Jan. 16, 2015
Application notes Layout Guidelines For TPA300x Series Parts (Rev. A) Jun. 24, 2020
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
User guides TPA3131D2 EVM User's Guide Jun. 26, 2013
Application notes AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
149
Description

The TPA3131D2EVM is a stereo analog input, Class-D speaker amplifier IC for driving speakers with output power of 2x7W into 8Ω. TPA3131D2 operates heat sink-free with cooling to the PCB through the PowerPAD™ package. The TPA3131 has an advanced oscillator/PLL circuit which employs a multiple (...)

Features
  • 7W output into a 8 Ohm load at 7.4V and 10% THD+N
  • Low shutdown current 32uA
  • Wide voltage range 4.5V – 26V
  • Multiple switching frequencies
  • Stereo and Mono modes
  • Design tools & simulation

    SIMULATION MODELS Download
    SLOM362.ZIP (40 KB) - TINA-TI Spice Model
    SIMULATION MODELS Download
    SLOM363.TSC (89 KB) - TINA-TI Reference Design
    SIMULATION MODELS Download
    SLOM364.ZIP (34 KB) - TINA-TI Spice Model
    SIMULATION MODELS Download
    SLOM365A.ZIP (19 KB) - PSpice Model
    SIMULATION MODELS Download
    SLOM366A.ZIP (19 KB) - PSpice Model
    SIMULATION MODELS Download
    SLOM367.TSC (104 KB) - TINA-TI Reference Design
    SIMULATION TOOLS Download
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — 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 (...)
    Features
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)
    GERBER FILES Download
    SLOC294.ZIP (477 KB)

    CAD/CAE symbols

    Package Pins Download
    VQFN (RHB) 32 View options

    Ordering & quality

    Support & training

    TI E2E™ forums with technical support from TI engineers

    Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

    If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

    Videos

    Related videos