TPA2031D1YZFR

Overview

The TPA2031D1YZFR is a single-channel mono Class-D audio power amplifier manufactured by Texas Instruments. It delivers 2.5 W of output power into an 8-ohm load with a supply voltage range of 2.5 V to 5.5 V. The device operates within a temperature range of -40°C to +85°C and features a fixed gain of 6 dB. Key electrical specifications include a total harmonic distortion plus noise (THD+N) of 0.18% and a quiescent current of 3 mA. It utilizes a 9-pin DSBGA package for surface mount installation.

Feature Summary

• Filter-free operation eliminates the need for external output filters.
• Integrated depop circuitry prevents audible click and pop noises during startup and shutdown.
• Fast 32 ms start-up time ensures rapid system initialization.

Applications

• Communication devices
• Weak signal detection circuits
• High/low-pass filter circuits

Procurement Notes

Verify the specific suffix 'YZFR' against the manufacturer's official documentation to confirm the tape and reel packaging configuration. Ensure that the ordering information matches the exact part number required for your design, as suffix variations may indicate different packaging or handling characteristics. Cross-reference the datasheet revision date to ensure compliance with current manufacturing standards.

Selection Notes

Select this component for applications requiring high efficiency and minimal external components due to its filter-free design. The differential input capability provides robust noise immunity in electrically noisy environments. Consider the thermal protection feature for designs operating near maximum power limits. Verify that the 8-ohm load impedance aligns with the speaker or transducer requirements of the target application.

Part Context

This device belongs to the TPA203XD1 series of nanoFree™ Class-D amplifiers. It shares architectural similarities with the TPA2032D1 and TPA2029D1 but offers distinct power and feature configurations. The series is designed for portable audio applications where space and battery life are critical constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

FAQ

Does the TPA2031D1YZFR require external output filters?

No, it is a filter-free Class-D amplifier designed to operate without external LC filters.

What is the start-up time of the amplifier?

The amplifier has a maximum start-up time of 32 ms, which helps eliminate codec click/pop noise.