TPA2005D1ZQYR

Overview

The TPA2005D1ZQYR is a mono fully differential filter-free Class-D audio power amplifier manufactured by Texas Instruments. It delivers 1.4 W of continuous output power into an 8-ohm load with a supply voltage of 5 V and total harmonic distortion plus noise (THD+N) limited to 10%. The device operates within a supply voltage range of 2.5 V to 5.5 V and achieves up to 84% efficiency. It features –71-dB power supply rejection ratio (PSRR) at 217 Hz and improved RF-rectification immunity. The component is housed in a MicroStar Junior BGA package measuring 2.5 mm x 2.5 mm, requiring only 15 mm² of total PCB area.

Feature Summary

• Fully differential architecture eliminates the need for external output coupling capacitors or common-mode chokes.
• Filter-free design reduces bill of materials and board space requirements.
• High efficiency operation extends battery life in portable devices.
• Enhanced RF-rectification immunity ensures stable performance in noisy environments.

Applications

• Cellular handsets
• Personal media players
• Portable navigation systems

Procurement Notes

Verify the specific suffix ZQYR corresponds to the MicroStar Junior BGA package configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure ESD handling precautions are followed during assembly due to the small form factor. Cross-reference the marking code AAFI with the datasheet to validate authenticity.

Selection Notes

Select this component for mono audio applications requiring minimal external components. Suitable for single-supply systems operating between 2.5 V and 5.5 V. Ideal for space-constrained designs where thermal management and board area are critical constraints.

Part Context

This part belongs to the TPA2005D1 family of Class-D amplifiers designed for mobile communication devices. It shares functional characteristics with other variants in the series but differs in packaging and tape-and-reel specifications. The MicroStar Junior package provides a compact solution compared to traditional QFN or MSOP options.

Replacement Considerations

Direct substitutes include TPA2005D1DRBR and TPA2005D1GQYR. Verify pinout compatibility and package dimensions before substitution. Ensure electrical parameters match the original design requirements.