TAS6584QPHDRQ1

Overview

The TAS6584QPHDRQ1 is a four-channel, digital-input, high-voltage Class-D automotive audio amplifier. It supports up to 45-V supply voltage and delivers up to 10-A channel output current. The device provides 118 W (45 V, 8 Ω, 1% THD) or 215 W (45 V, 4 Ω, 1% THD) per bridge-tied load configuration. Audio performance includes 111 dB SNR and 0.03% THD+N at 1 kHz. It features integrated DC/AC load diagnostics, real-time current sense via TDM, and Class-H envelope tracking. The unit operates within –40°C to +125°C and utilizes a 64-pin HTQFP package.

Feature Summary

• Integrates real-time load diagnostics and individual channel current sensing for continuous monitoring of connected loads during playback.
• Features an internal DSP enabling Class-H envelope tracking control without requiring external microcontrollers.
• Provides a low-latency signal path that reduces processing delay by up to 70% at 48 kHz for time-sensitive applications.
• Supports I2C control with multiple address options and compatibility with 1.8-V and 3.3-V I/O logic levels.

Applications

• Automotive external amplifiers
• Automotive head units

Procurement Notes

Verify the specific ordering suffix PHDRQ1 against the official Texas Instruments orderable addendum to confirm the HTQFP-64 package and large tape-and-reel carrier specifications. Ensure compliance with AEC-Q100 Grade 1 requirements for the intended operating temperature range. Confirm RoHS status and moisture sensitivity level ratings prior to assembly planning.

Selection Notes

Select this component when designing systems requiring high-power multi-channel audio amplification in automotive environments. The integrated Class-H control simplifies boost voltage management compared to standard Class-D designs. Consider the 64-pin QFP footprint and thermal pad requirements for PCB layout. Verify that the host processor supports the required digital audio interfaces and I2C addressing schemes.

Part Context

This part belongs to the TAS6584-Q1 family of high-voltage digital input audio amplifiers designed specifically for automotive use. The TAS6584QPHDRQ1 designation identifies the production-grade version housed in a 64-pin plastic quad flatpack with an exposed thermal pad. It represents a solution for delivering high-fidelity sound with advanced diagnostic capabilities in vehicle infotainment architectures.

Replacement Considerations

Consult the TI product selection guide for alternative devices within the TAS6584-Q1 family. Verify pinout compatibility and package dimensions if substituting with other variants in the series. Ensure any replacement maintains the required automotive qualification and thermal performance characteristics.

FAQ

Does the TAS6584QPHDRQ1 support Active Noise Cancellation?

Yes, the device features a low-latency signal path that reduces processing delay by up to 70% at 48 kHz, enabling time-sensitive Active Noise Cancellation (ANC) and Road Noise Cancellation (RNC) applications.

How does the device handle load diagnostics?

The TAS6584QPHDRQ1 integrates DC and AC load diagnostics to determine load status before enabling the output stage. It also monitors load conditions during playback using real-time diagnostics independent of the host processor.