TAS5414TDKDRQ1

Overview

The TAS5414TDKDRQ1 is a four-channel automotive digital Class-D audio amplifier designed for high-efficiency sound systems. It features single-ended analog inputs and operates within an 8 V to 22 V supply range. The device delivers up to 28 W per channel into 4 Ω at 14.4 V with less than 1% THD+N, or 45 W per channel into 2 Ω under the same conditions. It utilizes a patented PWM topology to reduce heat dissipation significantly compared to linear amplifiers. The component includes integrated load diagnostics, protection circuits, and I²C control.

Feature Summary

• Four-channel digital power amplifier architecture with single-ended analog inputs
• Patented pop-and-click reduction technology for mute and startup sequences
• Integrated load diagnostic functions for detecting open and shorted loads
• Configurable gain settings via I²C serial interface

Applications

• Automotive high-power OEM head units
• Automotive retail head units
• PBTL amplifier modules
• External automotive amplifier modules

Procurement Notes

Verify the specific package variant DKD (36-pin PSOP3) matches the design requirements. Confirm AEC-Q100 qualification status for the intended automotive environment. Check for end-of-life or NRND status in current distributor catalogs before finalizing designs. Ensure thermal management solutions accommodate the heat slug-up configuration specified for this package type.

Selection Notes

Select this model when single-ended input compatibility is required rather than differential signaling found in the TAS5424. Consider the 36-pin PSOP3 package constraints for PCB layout and thermal dissipation. Evaluate the need for synchronized multi-device operation if higher channel counts are necessary for the vehicle audio system.

Part Context

This component belongs to the Texas Instruments TAS5414/TAS5424 family of four-channel automotive digital amplifiers. It shares core Class-D technology with the TAS5424 but differs in input configuration. The series addresses automotive EMC requirements and offers efficiency improvements over traditional Class-AB solutions.

Replacement Considerations

TAS5414CTPHDRQ1: Different package (HTQFP-64). TAS5414ATPHDRMQ1: Different package (HTQFP-64). TAS5414ATDKDQ1G4: Same package (DKD), different suffix indicating RoHS compliance.