SLOT141 February   2022 TAS6584-Q1

 

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Automotive audio system designers are looking for comprehensive features to meet the requirements of their next-generation audio systems. Automotive-grade Class-D audio amplifiers can be used to provide high system efficiency, scalable input-supply voltages, high output current, load diagnostics, and a complete suite of protection features to help easily meet these requirements.

Class-D Audio Amplifier Diagram

Design Considerations

  • Supply voltage and output current capabilities to the drive speaker load at the desired output power
  • Number of speakers (channel count) and design scalability using pin-to-pin compatible devices
  • Customer-requested automotive diagnostics and protection features. See the Automotive audio diagnostics and protection video series and the Real-Time Load Diagnostics application brief to learn more.
  • Size constraints including Printed Circuit Board (PCB) area and heat-sink size
Input Type Maximum Operating Voltage Part Number(1) Channel Count Output Current per Channel Features
Digital 45 V TAS6584-Q1 4 10 A 480 kHz or 2 MHz Fsw, Real-time Load Diagnostics, Standby AC and DC Diagnostics, Current Sense, Class-H Control, Low Latency path, advanced EMI features
26.4 V TAS6424E-Q1 4 7.2 A 2 MHz Fsw, Standby AC and DC Diagnostics, advanced EMI features
TAS6422E-Q1 2 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics, advanced EMI features
TAS6424-Q1 4 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics
TAS6422-Q1 2 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics
TAS6421-Q1 1 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics
18 V TAS6424M-Q1 4 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics
TAS6424L-Q1 4 4.8 A 2 MHz Fsw, Standby AC and DC Diagnostics
Analog 18 V TPA6304-Q1 4 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics, advanced EMI features
TPA6404-Q1 4 6.5 A 2 MHz Fsw, Standby AC and DC Diagnostics
(1) For more devices, browse through the online parametric tool where you can choose between the three types of translators.

For additional assistance, ask questions to TI audio engineers on the TI E2E™ Audio Support Forum.