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TAS5431-Q1 ACTIVE 8-W mono automotive Class-D audio amplifier with load dump and I2C diagnostics TAS5431-Q1 is our newest version of this device and enables non-blocking I2C in STANDBY mode.

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Automotive Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 8 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 16 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 18 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Automotive Power stage supply (max) (V) 18 Power stage supply (min) (V) 4.5 Load (min) (Ω) 2 Output power (W) 8 THD + N at 1 kHz (%) 0.05 Iq (typ) (mA) 16 Control interface I2C Closed/open loop Closed Analog supply (min) (V) 4.5 Analog supply voltage (max) (V) 18 Sampling rate (max) (kHz) 96 PSRR (dB) 75 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM Classification Level H2
    • Device CDM Classification Level C5
  • Mono BTL Class-D Power Amplifier
  • 8-W Output Power at 10% THD+N Into 4 Ω
  • 4.5-V to 18-V Operating Range
  • 83% 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 -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
    • Over- and Undervoltage Protection
  • Thermally Enhanced 16-Pin HTSSOP (PWP) Package With PowerPAD™ Package (Pad Down)
  • Designed for Automotive EMC Requirements
  • ISO9000: 2002 TS16949 Certified
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM Classification Level H2
    • Device CDM Classification Level C5
  • Mono BTL Class-D Power Amplifier
  • 8-W Output Power at 10% THD+N Into 4 Ω
  • 4.5-V to 18-V Operating Range
  • 83% 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 -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
    • Over- and Undervoltage Protection
  • Thermally Enhanced 16-Pin HTSSOP (PWP) Package With PowerPAD™ Package (Pad Down)
  • Designed for Automotive EMC Requirements
  • ISO9000: 2002 TS16949 Certified

The TAS5411-Q1 is a mono class-D audio amplifier, ideal for use in automotive emergency call (eCall), telematics, and instrument cluster applications. The device provides up to 8 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.

The TAS5411-Q1 is a mono class-D audio amplifier, ideal for use in automotive emergency call (eCall), telematics, and instrument cluster applications. The device provides up to 8 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
* Data sheet TAS5411-Q1 8-W Mono Automotive Class-D Audio Amplifier With Load Dump and I2C Diagnostics datasheet (Rev. B) PDF | HTML 24 Sep 2018
Application note TAS5421-Q1 and TAS5411-Q1 I2C Applications Note (Rev. B) PDF | HTML 07 Jun 2021
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note Short-to-Battery Protection Strategies for Class-D Amplifiers 11 Nov 2016
Technical article How does the eCall system work? PDF | HTML 22 Apr 2016
Technical article A complete low-voltage backup battery solution for eCall systems PDF | HTML 05 Mar 2016
EVM User's guide TAS5411Q1EVM User's Guide 06 Nov 2015
Application note Class-D LC Filter Design (Rev. B) 20 Feb 2015
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

TAS5411Q1EVM — TAS5411-Q1 8-W Automotive Mono Analog Input Class-D Audio Amp Evaluation Module

The TAS5411Q1EVM showcases TI’s cost-optimized 1-Ch Analog Input Class-D Audio Solution for Telematics, eCall and Instrument Cluster systems.

  • TAS5411 high efficiency enables telematics systems to run on battery backup power for extended periods of time.
  • TAS5411 delivers 8W into 4-Ω with a (...)
User guide: PDF
Not available on TI.com
Simulation model

TAS5411 TINA-TI Spice Model (Rev. A)

SLOM400A.TSM (36 KB) - TINA-TI Spice Model
Simulation model

TAS5411-Q1 IBIS Model

SLOM398.ZIP (19 KB) - IBIS Model
Simulation model

TAS5411-Q1 TINA-TI Reference Design (Rev. B)

SLOM399B.TSC (187 KB) - TINA-TI Reference Design
Simulation model

TAS5411-Q1 Unencrypted PSpice Model Package (Rev. A)

SLOM401A.ZIP (122 KB) - PSpice 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 (...)
Reference designs

TIDA-00724 — Automotive emergency call (eCall) audio subsystem reference design

The efficiency and diagnostics necessary for automotive emergency call (eCall) systems generate unique requirements for the audio subsystem, such as speaker diagnostics and low-power consumption.  This reference design shows how to use our automotive two-channel audio codec (TLV320AIC3104-Q1) (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 16 Ultra Librarian

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