TAS6421QDKQRQ1

Overview

The TAS6421QDKQRQ1 is a single-channel Class-D audio amplifier from Texas Instruments, designed for automotive applications. It operates within a supply voltage range of 4.5 V to 26 V and delivers up to 75 W of output power into a 4-ohm load. The device features a digital input interface and is housed in a 56-pin HSSOP package. It supports operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Single-channel high-power Class-D architecture optimized for automotive environments
• Digital input interface for direct integration with audio processors
• Wide operating supply voltage range supporting various vehicle electrical systems

Applications

• Automotive center console speaker amplification
• Vehicle door panel audio output stages
• High-fidelity car audio system main channels

Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct package and tape-and-reel specifications. Confirm AEC-Q100 qualification status and specific thermal performance requirements for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when a single-channel solution with high power output is required for automotive audio systems. Ensure the design accommodates the 56-pin HSSOP package dimensions and thermal dissipation needs. Verify compatibility with the digital audio interface protocol used in the host system.

Part Context

This part belongs to the TAS642x-Q1 family of automotive audio amplifiers. It complements other multi-channel variants like the TAS6422 by providing a dedicated single-channel option for high-power applications. The series is characterized by robust protection features and high efficiency suitable for demanding vehicular conditions.

Replacement Considerations

Check for direct pin-to-pin replacements within the TAS642x-Q1 family or updated revisions of the same part number. Verify that any substitute maintains the 75W output capability and 56-HSSOP package form factor.