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TAS5431-Q1

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

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Product details

Parameters

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

Features

  • 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

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Description

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.

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Technical documentation

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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

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Hardware development

EVALUATION BOARD Download
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Description
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.
Features
  • Mono audio for automotive emergency call (eCall) and VESS applications
  • Runs with I2C initialization
  • GUI control via USB port

Design tools & simulation

SIMULATION TOOL 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
  • (...)

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 16 View options

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