TIDA-00573

Automotive 4-Channel Class D Amplifier Reference Design for Head Unit

TIDA-00573

Design files

Overview

The TIDA-00573 reference design provides a Class D based amplifier solution that allows it to be evaluated in the form factor of a typical Class AB amplifier.  The design is optimized to mitigate thermals associated with audio amplifiers and to minimize switching noises associated with Class D amplifiers.  This design is comprised of two parts.  The 1st highlights the audio amplifier module while the 2nd highlights the circuitry needed to incorporate it into a base board.  The pair of boards allows stand-alone performance testing of the design.

Features
  • Able to withstand load-dump conditions
  • Size/Space optimized design
  • CISPR-25 tested EMI
  • Able to withstand Start/Stop operation down to 5.6V
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUB81.PDF (3599 KB)

Reference design overview and verified performance test data

TIDRK84.ZIP (287 KB)

Detailed overview of design layout for component placement

TIDRK86.ZIP (2600 KB)

Detailed overview of design layout for component placement

TIDRK83.ZIP (210 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRK88.ZIP (1569 KB)

Files used for 3D models or 2D drawings of IC components

TIDCBR1.ZIP (2609 KB)

Design file that contains information on physical board layer of design PCB

TIDRK87.ZIP (1582 KB)

PCB layer plot file used for generating PCB design layout

TIDRK82.ZIP (749 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Automotive audio amplifiers

TAS5404-Q1Automotive, 26-W, 4-ch, 6- to 18-V analog SE input Class-D audio amplifier w/ I2C diag & load dump

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TL760M33-Q1Automotive 500-mA, 26-V, high-accuracy, low-dropout voltage regulator

Data sheet: PDF

Technical documentation

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Type Title Date
* Design guide Automotive 4-Channel Class D Amplifier for Head Unit Design Guide Dec 4, 2015

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