TDA8933T/N1,112

Overview

The TDA8933T/N1,112 is a high-efficiency Class-D audio amplifier manufactured by NXP USA Inc. It features low power dissipation and operates with supply voltages from 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical. The device delivers continuous output power of 2 × 10 W in stereo half-bridge applications (RL = 8 Ω) or 1 × 20 W in mono full-bridge applications (RL = 16 Ω). It incorporates thermal foldback technology, allowing operation without external heat sinks under typical music signals. The amplifier includes two full-differential inputs and supports both mono bridge-tied load and stereo single-ended configurations.

Feature Summary

• High efficiency Class-D architecture with low power dissipation
• Thermal foldback functionality for heat sink-free operation
• Full differential inputs for enhanced common-mode rejection
• Integrated protections including thermal, current, and voltage safeguards

Applications

• Flat panel television sets
• Flat panel monitor sets
• Multimedia systems
• Wireless speakers
• Mini/micro systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches project requirements. Check for RoHS compliance status as indicated in official documentation. Ensure storage conditions adhere to moisture sensitivity level guidelines. Validate that the received part number corresponds exactly to the requested specifications before integration into production lines.

Selection Notes

Select this amplifier for designs requiring high efficiency and minimal thermal management overhead. Consider the available operating modes and protection features when designing control logic. Evaluate the package thermal characteristics against the expected ambient temperature and duty cycle. Ensure the power supply rails align with the specified asymmetrical or symmetrical voltage ranges for optimal performance.

Part Context

This component belongs to the TDA8933 series of Class-D audio amplifiers. It is designed for consumer electronics where space and thermal constraints are critical. The SO32 package provides a compact solution for integrating audio amplification capabilities into modern multimedia devices without compromising on sound quality or power efficiency.

Replacement Considerations

Consult official replacement lists for verified substitutes. Ensure any alternative component maintains compatible pinout, voltage ratings, and thermal performance characteristics.