TAS5622ADDVR

Overview

The TAS5622ADDVR is a Texas Instruments PurePath™ HD digital input Class-D power stage, part of the TAS5622A series. It utilizes a PWM digital input architecture and integrates on-chip feedback for high-fidelity audio amplification. In bridge-tied load (BTL) stereo mode, it delivers 2x125W output at 4Ω with 10% THD+N, or 2x100W at 6Ω. In parallel bridge-tied load (PBTL) mono mode, it provides up to 250W at 2Ω or 195W at 3Ω. The device features low total harmonic distortion (0.025% at 1W, 4Ω), high power supply rejection ratio (>65dB), and an A-weighted signal-to-noise ratio of 105dB. It employs large MOSFETs with low on-resistance to achieve power stage efficiency exceeding 90%, reducing system heat dissipation requirements.

Feature Summary

• Integrates PurePath™ HD closed-loop feedback technology to minimize distortion and maximize power supply rejection, ensuring output voltage depends solely on the audio input signal regardless of power fluctuations.
• Utilizes a PWM digital input architecture that eliminates the need for external DACs and analog front-ends, simplifying the signal chain while maintaining high fidelity.
• Features advanced thermal management capabilities as a heat-enhanced version, supporting high-power outputs with reduced heatsink size requirements due to >90% power stage efficiency.
• Includes comprehensive protection mechanisms such as under-voltage lockout, over-temperature warning, short-circuit protection, and error reporting to ensure reliable operation in demanding environments.

Applications

• Home theater systems requiring multi-channel high-power amplification
• AV receivers needing efficient stereo or mono power stages
• Soundbars demanding compact, high-efficiency audio solutions
• Active subwoofers utilizing PBTL configuration for deep bass reproduction

Procurement Notes

Verify the specific suffix 'ADDVR' confirms the tape-and-reel packaging format suitable for automated surface-mount assembly. Confirm compatibility with external PWM modulators such as the TAS5518 when implementing Equibit™ technology. Ensure design adheres to recommended PCB layout guidelines to meet EMI standards and optimize thermal performance. Cross-reference pinouts with official datasheets to validate integration with existing control logic and power supply rails.

Selection Notes

Select this component for applications prioritizing high output power density and audio fidelity in digital amplifier designs. It is suitable for systems where minimizing external component count and simplifying the analog signal path are critical. Consider its thermal characteristics and efficiency benefits for space-constrained enclosures. Evaluate its compatibility with existing digital audio interfaces and modulation schemes before finalizing the bill of materials.

Part Context

The TAS5622ADDVR belongs to the TAS5622A family of PurePath™ HD digital input Class-D power stages from Texas Instruments. It shares architectural similarities with related models like the TAS5624A but offers specific power configurations optimized for stereo and mono bridged loads. This series represents TI's solution for high-performance audio power amplification using digital inputs, focusing on efficiency and sound quality through integrated feedback loops.

Replacement Considerations

The TAS5624ADDVR is a compatible alternative within the same family, offering higher power ratings in certain configurations. Verify pin-to-pin compatibility and thermal requirements when substituting. Other members of the TAS56xxA series may require different external components or control signals; consult specific datasheets for detailed comparison.