TDA8933BTW/N2,518

Overview

The TDA8933BTW/N2,518 is a high-efficiency Class D audio amplifier manufactured by NXP USA Inc. It features two full differential inputs driving independent outputs, supporting mono full-bridge (BTL) or stereo half-bridge (SE) configurations. Operating voltage ranges from 10 V to 36 V asymmetrical or ±5 V to ±18 V symmetrical. Continuous output power is 2 × 10 W in stereo SE mode with an 8 Ω load at 25 V supply, or 1 × 20 W in mono BTL mode with a 16 Ω load. The device utilizes thermal foldback and current limiting to operate without external heat sinks under typical music signals.

Feature Summary

• High efficiency Class D architecture with low power dissipation
• Thermal foldback and current limiting for heat sink-free operation
• Full short circuit protection across load and to supply lines
• Internal or external oscillator configuration with master-slave synchronization

Applications

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

Procurement Notes

Verify the specific ordering suffix /N2,518 against official NXP documentation to confirm material declaration and environmental compliance status, as variants within the TDA8933BTW family may differ in lead content and REACH SVHC indicators. Confirm package type HTSSOP32 and pinout compatibility with existing designs. Check current manufacturing status as some TDA8933B variants are discontinued.

Selection Notes

Select this component for applications requiring high efficiency and minimal thermal management due to its thermal foldback capability. Ensure the design supports either stereo single-ended or mono bridge-tied load configurations based on the required output power and load impedance. Verify that the supply voltage remains within the 10 V to 36 V range and that the PCB layout accommodates the exposed die pad for thermal dissipation.

Part Context

The TDA8933B series comprises high-efficiency Class D audio amplifiers designed for low power dissipation. The TDA8933BTW variant specifically uses a plastic thermal enhanced thin shrink small outline package with 32 leads. This family allows for flexible configuration as either mono full-bridge or stereo half-bridge amplifiers, suitable for various consumer audio electronics.

Replacement Considerations

TDA8933BTW/N2,112, TDA8933BTW/N2,118, TDA8933BTW/N2,518.