TDF8536HH/N1Y

Overview

The TDF8536HH/N1Y is a four-channel Class-D audio amplifier from the NXP TDF853x family, designed for automotive applications. It operates with supply voltages ranging from 5.5 V to 45 V and delivers up to 140 W per channel into 4 Ω loads. The device features a single digital-feedback loop, TDM/I²S digital input, and interleaved power stages for improved EMC. It includes comprehensive diagnostics such as startup checks, clip detection, and DC offset monitoring, alongside protections against overcurrent, thermal stress, and load dumps.

Feature Summary

• Single digital-feedback loop architecture reduces system cost while maintaining high audio quality
• Interleaved power stages enhance electromagnetic compatibility and reduce output filter complexity
• Integrated diagnostic capabilities include startup verification, clip detection, and DC output offset monitoring
• Robust protection mechanisms cover independent current thresholds, thermal fold-back, and 50 V load dump tolerance

Applications

• Automotive head-unit radios
• Vehicle sound systems
• Active noise-cancellation systems
• Electric vehicle ambient and engine sound generation

Procurement Notes

Verify the specific ordering suffix and package type against the manufacturer's latest documentation to ensure compatibility with your design requirements. Confirm availability and lead times through authorized distributors, as production status may vary. Ensure all electrical specifications match your system's voltage and power constraints before finalizing procurement.

Selection Notes

Select this component for high-power automotive audio applications requiring 45 V operation and 140 W per channel output. The interleaved mode is recommended for designs prioritizing EMC performance. Consider the integrated diagnostics and protection features for robust system reliability in harsh automotive environments.

Part Context

The TDF8536HH/N1Y belongs to the TDF853x series of ultra-performance Class-D amplifiers. This family supports various channel counts and voltage ranges, with the TDF8536 specifically offering four channels capable of driving 45 V loads. It is part of NXP's solution for A+ audio experiences in vehicles supporting 5.5 V stop-start requirements.

Replacement Considerations

Direct replacements within the TDF853x family include the TDF8531HH, TDF8532HH, TDF8534HH, and their B-series variants. When substituting, verify channel count, maximum supply voltage, and output power specifications to ensure functional equivalence.

FAQ

What is the maximum supply voltage for the TDF8536?

The TDF8536 supports a supply voltage range from 5.5 V to 45 V.

Does the TDF8536 support interleaved power stages?

Yes, the TDF8536 includes interleaved power stages to improve EMC performance and reduce output filter cost.

What diagnostic features are included in the TDF8536?

It includes startup diagnostics for AC/DC coupled loads, supply voltage feedback, selectable clip detection, DC output offset diagnostics, and IEEE 1194.1-compliant boundary scan.