TDA8932BT/N2,118

Overview

The TDA8932BT/N2,118 is a high-efficiency Class-D audio amplifier manufactured by NXP Semiconductors. It supports stereo single-ended (SE) and mono full-bridge (BTL) configurations with an operating voltage range of 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical. The device delivers up to 15 W per channel in stereo SE mode at 4 Ω and 30 W in mono BTL mode at 8 Ω. It features integrated thermal foldback, short-circuit protection, and pop-noise suppression.

Feature Summary

• Supports mono full-bridge and stereo half-bridge applications without requiring external heat sinks during music playback due to low power dissipation.
• Includes built-in protections such as thermal foldback, overtemperature shutdown, current limiting, and short-circuit proofing across load and supply lines.
• Features fully differential inputs for high common-mode rejection and switchable internal or external oscillator settings for master-slave synchronization.

Applications

• Flat panel television sets
• Multimedia systems
• Wireless speakers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and reel specifications. Confirm component status as discontinued before finalizing procurement plans. Ensure compatibility with existing PCB layouts and thermal management designs specified in the datasheet.

Selection Notes

Select this component for applications requiring high efficiency and low power dissipation in compact form factors. Consider the thermally enhanced HTSSOP32 package for improved heat transfer. Evaluate the need for master-slave oscillator synchronization if multiple units are deployed in the same system.

Part Context

This part belongs to the TDA8932B family of Class-D audio amplifiers. It is designed for consumer electronics where space and thermal constraints are critical. The device integrates advanced protection circuits to ensure reliability under various fault conditions.

Replacement Considerations

Check for direct pin-compatible alternatives within the TDA893x series. Verify that any substitute maintains the required output power levels and protection features.

FAQ

How does the thermal foldback feature operate?

When the junction temperature exceeds 140 °C, the amplifier gain decreases gradually to maintain operation at lower output power levels without shutting down completely.

What is the function of the DIAG pin?

The DIAG pin is an open-drain diagnostic output that goes LOW when a protection fault other than thermal foldback is triggered.