Demand for emergency call systems in automobiles is rapidly increasing. Emergency call systems automatically notify the nearest emergency center of an accident victim's location when a collision occurs, thereby reducing response time for life-saving rescue operations. Emergency call systems must guarantee reliable automatic operation for extended periods using only backup battery power. System developers can now meet these requirements through the TAS5421-Q1's 90% efficiency and low quiescent current benefits.

Key Features and Benefits of TAS5421-Q1

• Highest Level of Integration: By integrating 40V load dump and thermal protection functions, it prevents Class D amplifier damage from harsh automotive environments including load dump.

• High Efficiency and Low Quiescent Current: Eliminates the need for additional battery cells, reducing overall system cost, space, and weight compared to using discrete solutions.

• Integrated I2C Diagnostics: By incorporating comprehensive automotive-grade diagnostic functions, it can replace discrete solutions, reducing cost, shortening development time, improving reliability, and lowering system complexity.

Automotive Emergency Call System (eCall) Reference Design

Customers can accelerate eCall system development time by leveraging TI's comprehensive automotive eCall reference design consisting of AEC-Q100 certified analog IC products. Included in the TI Designs reference design library, this reference design contains a complete bill-of-materials (BOM), schematics, test data, and design files, enabling faster eCall system design.

Availability, Packaging and Pricing

The TAS5421-Q1 is offered in a 16-pin HTSSOP package with PowerPAD packaging technology, with a recommended consumer price starting at $1.74 per unit at 1,000-unit volume.

For More Information:

• TAS5421-Q1 Sample Order

• IBIS Model Download

• View Complete TI Designs Automotive eCall Reference Design

• Search for solutions, share ideas with fellow engineers and TI experts in the TI E2E™ Community Audio Amplifier Forum for Engineers

• Check TI Signal Chain Expert Blog