8-W mono automotive Class-D audio amplifier with load dump and I2C diagnostics


Product details


Audio input type Analog Input Architecture Class-D Speaker channels (Max) Mono Power stage supply (Max) (V) 18 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 2 Output power (W) 8 THD + N @ 1 kHz (%) 0.05 Iq (Typ) (mA) 16 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 18 Sampling rate (Max) (kHz) 96 PSRR (dB) 75 Operating temperature range (C) -40 to 125 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (PWP) 16 32 mm² 5 x 6.4 open-in-new Find other Speaker amps


  • AEC-Q100 Qualified for automotive applications
    • Temperature grade 1: –40°C to 125°C, TA
  • Mono BTL Digital power amplifier
  • -W Output power at 10% THD+N into 4 Ω
  • 4.5-V to 18-V Operating range
  • Efficiency into 4 Ω
  • Differential analog input
  • Speaker Guard™ speaker protection with adjustable power limiter
  • 75-dB Power-supply rejection ratio (PSRR)
  • Load diagnostic functions:
    • Open and shorted output load
    • Output-to-power and output-to-ground shorts
  • Protection and monitoring functions:
    • Short-circuit protection
    • 40-V Load dump protection per ISO-7637-2
    • Output DC Level detection while music is playing
    • Overtemperature protection
    • Overvoltage and Undervoltage protection
  • Thermally enhanced 16-Pin HTSSOP (PWP) package with PowerPAD™ package (pad down)
  • Designed for automotive EMC requirements
  • ISO9000: 2002 TS16949 certified
  • 40-V Load dump protection in standby
  • Non-blocking I2C in standby

All trademarks are the property of their respective owners.

open-in-new Find other Speaker amps


The is a mono class-D audio amplifier, ideal for use in automotive emergency call (eCall), telematics, instrument cluster, and infotainment applications. The device provides up to -W into 4 Ω at less than 10% THD+N from a 14.4-Vdc automotive battery. The wide operating voltage range and excellent efficiency make the device ideal for start-stop support or running from a backup battery when required. The integrated load-dump protection reduces external voltage clamp cost and size, and the onboard load diagnostics report the status of the speaker through I2C.

open-in-new Find other Speaker amps

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 2
Type Title Date
* Datasheet TAS5431-Q1 8-W Mono Automotive Digital-audio Amplifier with Load Dump and I2C datasheet (Rev. A) Jun. 12, 2020
User guide TAS5431-Q1 EVM User's Guide (Rev. A) Jun. 01, 2020

Design & development

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

Hardware development

The TAS5431Q1EVM evaluation module (EVM) showcases the latest TI analog input class D closed-loop mono amplifier. The EVM can be used as stand-alone platform with default I2C register settings. The EVM also works with PPC3 GUI for programming I2C register settings.
  • Mono audio for automotive emergency call (eCall) and VESS applications
  • Runs with I2C initialization
  • GUI control via USB port

Design tools & simulation

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 (...)
  • 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
  • (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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. ​​​​​​​​​​​​​​


Related videos