TPA2005D1ZQYRG1

Overview

The TPA2005D1 is a 1.4-W mono filter-free Class-D audio power amplifier from Texas Instruments, housed in a MicroStar Junior BGA package (ZQY). It operates on a supply voltage range of 2.5 V to 5.5 V and delivers up to 1.4 W into an 8-Ω load at 5 V with 10% THD+N. The device features a fully differential architecture that eliminates the need for input-coupling capacitors and mid-supply bypass capacitors. It requires only three external components and includes short-circuit and thermal protection.

Feature Summary

• Fully differential design eliminates the need for input-coupling capacitors and mid-supply bypass capacitors.
• Advanced PWM modulation scheme removes the requirement for an output LC filter.
• Integrated shutdown control allows for fast start-up times and minimal pop noise.
• Includes built-in short-circuit and thermal protection mechanisms.

Applications

• Wireless cellular handsets
• Personal Digital Assistants (PDAs)
• Earpiece and speaker phone drivers

Procurement Notes

Verify the specific ordering suffix ZQYRG1 against the manufacturer's current orderable addendum to confirm the exact package type and reel specifications. Ensure compatibility with the required PCB footprint for the MicroStar Junior BGA package. Confirm that the application environment remains within the specified operating temperature range of -40°C to 85°C.

Selection Notes

Select this component for portable devices requiring high efficiency and minimal board space. The fully differential inputs are suitable for noisy environments like wireless handsets. Verify that the logic levels for the SHUTDOWN pin are compatible with the system controller, or consider the TPA2006D1 if 1.8 V logic compatibility is required.

Part Context

This device belongs to the TPA200xDx series of filter-free Class-D amplifiers designed for mobile applications. It shares architectural similarities with other members of the family but is distinguished by its specific power output capabilities and package options. The ZQY package variant offers a compact 2.5 mm x 2.5 mm footprint ideal for space-constrained designs.

Replacement Considerations

The TPA2006D1 is documented as a substitute option, specifically offering 1.8 V logic compatibility on the shutdown pin while maintaining similar performance characteristics.