Class-D audio amplifier is for eCall and telematics

26 August 2014

The TAS5421-Q1 integrates diagnostics and load-dump protection, for reliability and simplified design, says Texas Instruments.

Designers can eliminate multiple discrete components, simplify automotive-grade diagnostic design and extend battery back-up power with the mono-channel, analogue differential input, claims the company.

It is supplied in a 16pin HTSSOP with PowerPAD package. It integrates 40V load dump and over-temperature to protect against harsh automotive conditions, such as load dump, that can damage the amplifier. The low quiescent current eliminates the need to use additional battery cells, cutting overall system cost, space and weight compared to discrete solutions.

Integrated I²C diagnostics replace discretes with automotive-grade diagnostics to reduce cost and development time.

An automotive eCall reference design is available, comprising, analogue AEC-Q100-qualified ICs from the company. It includes the full bill-of-materials, schematics, test data and design files for quick design of an eCall system.




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