TAS5624ADDVR

Overview

The TAS5624ADDVR is a high-performance PurePath™ HD digital input Class-D power stage from Texas Instruments, serving as the thermal-enhanced version of the TAS5614A. It utilizes a PWM digital input architecture with integrated on-chip feedback to deliver 2x150W in BTL stereo mode (10% THD+N, 4Ω) and up to 300W in PBTL mono mode (2Ω). The device features low on-resistance MOSFETs exceeding 90% efficiency and ultra-low distortion of 0.025% THD at 1W/4Ω. Packaged in a 44-pin HTSSOP (DDV) with an exposed pad for superior heat dissipation, it supports supply voltages from 12V to 38V.

Feature Summary

• Integrates PurePath™ HD closed-loop feedback technology to achieve ultra-low total harmonic distortion and high power supply rejection ratio.
• Features large MOSFETs with low on-resistance and advanced gate drive schemes to minimize static and low-output signal losses.
• Includes unique preclipping output signals designed to control Class-G power supplies for improved system-level energy efficiency.
• Provides comprehensive protection mechanisms including pop-and-click-free startup, undervoltage lockout, overtemperature protection, and short-circuit protection.

Applications

• Home theater systems
• AV receivers
• Soundbars
• Active subwoofers
• Professional audio equipment

Procurement Notes

Verify the specific suffix 'VR' indicates tape and reel packaging suitable for automated surface-mount production. Confirm the component matches the thermal-enhanced specifications of the TAS5624A series rather than standard variants. Ensure design compatibility with the required 44-pin HTSSOP footprint and exposed pad thermal management requirements during procurement validation.

Selection Notes

Select this component when designing high-power digital audio systems requiring efficient heat dissipation and high fidelity. It is ideal for applications needing bridge-tied load or parallel bridge-tied load configurations with significant power output. Consider its integration with external PWM modulators and Class-G power supplies to maximize overall system performance and minimize thermal constraints.

Part Context

This part belongs to the TAS5624A family of PurePath™ HD digital input Class-D amplifiers. It is specifically engineered as a thermal-enhanced successor to the TAS5614A, offering improved power handling capabilities within the same form factor. The series targets demanding audio applications where high efficiency and low distortion are critical for maintaining sound quality under heavy loads.

Replacement Considerations

The TAS5624ADDV is the tube-packaged equivalent of this component. For direct functional substitution without packaging changes, consider the TAS5614A series, though thermal performance may differ. Verify pinout compatibility and thermal pad requirements when replacing with other Class-D power stages.