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Product Detailed Parameters
- Description：BAP3 DIE1
- Series：*
- Mfr：NXP USA Inc.
- Package：Tray
- Type：-
- Output Type：-
- Max Output Power x Channels @ Load：-
- Voltage - Supply：-
- Features：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Operating Temperature：-
- Grade：-
- Qualification：-
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Overview
The NXP TDF8534HH is a five-channel Class-D audio amplifier designed for automotive applications. It operates within a supply voltage range of 5.5 V to 25 V and delivers up to 80 W per channel into 2 Ω or 4 Ω loads. The device features digital input in TDM/I²S format, feedback after the low-pass filter for improved audio quality, and interleaved power stages for enhanced EMC performance. It includes comprehensive diagnostic capabilities such as startup checks, supply voltage monitoring, and clip detection, alongside robust protection mechanisms like load dump and thermal fold-back.
Feature Summary
- Single digital-feedback loop architecture reduces system cost while delivering high-fidelity audio
- Five BTL channels with flexible configuration allowing two channels to combine for 1 Ω loads
- Comprehensive diagnostic suite including DC output offset, supply voltage feedback, and selectable clip detection
- Robust protection features including independent current thresholds, load dump protection, and thermal management
Applications
- Automotive head-unit radio systems
- Vehicle sound systems and active noise cancellation
- Automotive-engine sound design for electric vehicles
Procurement Notes
Verify the specific ordering suffix and package type against the official NXP datasheet to ensure compatibility with your board layout and thermal requirements. Confirm that the selected variant meets the required supply voltage and power output specifications for your target application environment.
Selection Notes
Select this model when five independent audio channels are required with high power output up to 80 W per channel. Consider the interleaved mode option if improved EMC performance and reduced output-filter complexity are critical design constraints. Ensure the host processor supports the required TDM or I²S digital input interfaces.
Part Context
The TDF8534HH belongs to the NXP TDF853x family of ultra-performance Class-D amplifiers. This series is engineered to support 5.5 V stop-start automotive requirements and provides seamless audio experiences. The family includes variants with three, four, or five channels, catering to different audio system configurations from basic radios to premium multi-zone setups.
Replacement Considerations
The TDF8531HH and TDF8532HH are part of the same family but offer fewer channels (three and four respectively). For direct functional replacement with identical channel count, verify pin-to-pin compatibility and electrical parameters with the manufacturer, as no direct substitute is explicitly confirmed in the provided documentation.
FAQ
What is the maximum supply voltage supported by the TDF8534HH?
The TDF8534HH supports an operation voltage range from 5.5 V to 25 V.
Does the TDF8534HH support interleaved power stages?
Yes, the TDF8534HH offers optional interleaved power stages to improve EMC performance and reduce output-filter cost and complexity.
What diagnostic features are included in the TDF8534HH?
It includes startup diagnostics for AC and DC coupled loads, supply voltage feedback with 8-bit resolution, selectable clip detection, DC output offset diagnostics, and IEEE 1194.1-compliant boundary scan.
