TAS2781RYYR

Overview

The TAS2781RYYR is a mono digital input Class-D audio amplifier from Texas Instruments, housed in a 30-pin HR-QFN package. It delivers 25 W of continuous power into a 4 Ω load with less than 1% THD+N at an 18 V supply voltage. The device supports a PVDDH range of 3 V to 24 V and features an integrated DSP for real-time speaker protection and audio processing. Key specifications include a maximum output power of 30 W at 10% THD+N, efficiency up to 93%, and support for I2S/TDM interfaces with sample rates from 16 kHz to 192 kHz.

Feature Summary

• Integrated Y-Bridge multi-level supply architecture that internally selects supplies for optimal headroom and improved efficiency.
• On-chip DSP supporting Smart Amp algorithms, including real-time IV-sense for monitoring loudspeaker voltage and current.
• Hybrid-Pro external boost control algorithm designed to optimize system efficiency and extend battery life.
• Brownout prevention scheme with adjustable thresholds that reduces signal path gain during supply drops.

Applications

• Laptop and Desktop Computers
• Smart Speakers
• Tablets and Handhelds
• Wireless Speakers

Procurement Notes

Verify the specific ordering suffix RYYR against the manufacturer's latest orderable addendum to confirm tape and reel packaging details. Ensure compatibility with the required IOVDD levels (1.8 V or 3.3 V) and validate PCB layout guidelines for the 30-pin HR-QFN package to maintain thermal performance.

Selection Notes

Select this component for applications requiring high peak power delivery within a compact form factor. The wide PVDDH input range accommodates both battery-operated and line-powered systems. Consider the integrated DSP capabilities if real-time speaker protection and advanced audio processing are required without external microcontrollers.

Part Context

This part belongs to the TAS2781 family of digital input Class-D amplifiers. It is designed to drive high peak power into loudspeakers efficiently. The device utilizes a Y-Bridge power architecture and includes hardware shutdown modes consuming less than 0.5 μA. It supports up to eight devices sharing a common bus via I2S/TDM and I2C/SPI interfaces.

Replacement Considerations

Consult the official datasheet orderable addendum for direct pin-compatible alternatives within the same series. Verify that any substitute maintains the 30-pin HR-QFN footprint and supports the necessary 24 V PVDDH operating range.