TDF8548ATH/N1U

Overview

The TDF8548ATH/N1U is a four-channel AB-class audio power amplifier manufactured by NXP USA Inc. It operates within a supply voltage range of 6V to 18V and delivers up to 28W per channel into a 4-ohm load. The device is housed in a 36-HSOP (BSSOP) package with exposed pad for thermal management. Key integrated features include pop-and-click suppression, short-circuit protection, and thermal shutdown to ensure robust operation in automotive environments.

Feature Summary

• Four-channel AB-class amplification architecture
• Integrated pop-and-click suppression circuitry
• Built-in short-circuit and thermal protection mechanisms

Applications

• Automotive infotainment systems
• Connected radio platforms
• Car audio amplifier modules

Procurement Notes

Verify component authenticity through authorized NXP distributors or certified partners. Confirm the specific suffix 'N1U' matches the required tape-and-reel packaging variant, distinct from the 'N1Z' tube version. Check RoHS compliance status as documentation indicates non-compliance for this specific part number. Ensure design-in compatibility with existing PCB footprints for the 36-HSOP package.

Selection Notes

Select this component for designs requiring multi-channel audio output in space-constrained automotive applications. The 36-HSOP package offers a compact solution compared to larger alternatives. Consider the 28W per channel output capability against system power requirements. Verify that the 6V to 18V supply range aligns with the vehicle's electrical architecture. Evaluate thermal dissipation needs given the exposed pad design.

Part Context

This amplifier belongs to the TDF854x family of I2C-controlled car audio amplifiers. It complements other NXP solutions like the TDF8541 for scalable audio processing in connected radio and infotainment systems. The family targets entry-level to mid-range automotive audio applications requiring reliable performance and integrated protection features.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult NXP technical support for direct replacements or pin-compatible alternatives.