TPA2000D2PW

Overview

The TPA2000D2PW is a stereo Class-D audio power amplifier manufactured by Texas Instruments. It delivers 2 W into 3-Ω speakers with THD+N below 0.4%. The device operates on a single 5-V supply, drawing only 8 mA in no-filter configurations. It features four selectable gain settings ranging from 8 dB to 23.5 dB and includes integrated depop circuitry for click-free startup. The amplifier utilizes a specialized modulation scheme that allows filterless operation, significantly reducing system cost and PCB area while maintaining high efficiency.

Feature Summary

• Filterless operation enabled by optimized modulation scheme
• Integrated depop circuitry eliminates startup noise
• Four programmable gain settings via digital inputs
• Comprehensive protection against short circuits and thermal overload

Applications

• Battery-powered multimedia speakers
• Notebook PC internal audio systems
• Powered speaker enclosures
• Consumer audio equipment

Procurement Notes

Verify the specific package variant during procurement. The PW suffix denotes a standard TSSOP package, while PWP indicates an HTSSOP package available in tube or reel formats. Confirm RoHS compliance status and moisture sensitivity level ratings prior to assembly planning to ensure compatibility with surface mount reflow processes.

Selection Notes

Select this component for applications requiring low supply current and minimal external components. The filterless design reduces bill of materials costs. Ensure the load impedance matches the 3-Ω or 4-Ω specifications for optimal power delivery. Verify that the input source can drive the variable input impedance associated with the selected gain setting.

Part Context

This device belongs to the third generation of Texas Instruments' 5-V Class-D amplifiers. It improves upon previous models by offering lower supply current, reduced noise floor, and higher efficiency. The monolithic design integrates bridge-tied load (BTL) outputs, eliminating the need for external coupling capacitors on the audio outputs.

Replacement Considerations

Direct pin-compatible alternatives within the same family include the TPA2000D2PWR and TPA2000D2PWPR. These variants share identical electrical characteristics but differ in packaging quantities and carrier types.