Overview
The TDF8532BHH/N3K is a Class-D audio amplifier IC produced by NXP USA Inc. This device is part of the TDF853x family, known for its ultra-efficient performance and high-quality audio output. The TDF8532BHH/N3K is specifically designed for automotive applications, offering a seamless audio experience in vehicles. It features four channels, each capable of driving 2 or 4 Ω loads, making it ideal for head-unit radios, sound systems, and active noise-cancellation systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Package / Case | 100-HLQFP (14x14) |
| Output Type | 4-Channel (Quad) |
| Mounting Type | Surface Mount |
| Type | Class D |
| Voltage - Supply | 5.5 V ~ 25 V |
| Max Output Power x Channels @ Load | 4 x 80 W @ 2 Ω |
| Total Harmonic Distortion + Noise (THD+N) | 0.02 % |
| Noise | 26 µV |
| Idle Power Dissipation | 2.8 W |
| Operating Temperature | -40°C to 150°C (Junction Temperature) |
Key Features
- Three, four, or five 2 or 4 Ω load Class-D BTL channels, with the ability for two BTL channels to combine and drive 1 Ω loads.
- Feedback after low-pass filter for lower BOM cost and better audio quality.
- Digital input in TDM/I²S format to ensure easy board layout.
- Line-driver mode to drive an external amplifier via direct loudspeaker cable.
- Quality in accordance with AEC-Q100.
- Diagnostic features including startup diagnostic for AC and DC coupled loads, supply voltage feedback with 8-bit resolution, and selectable clip detection.
- Protection features such as independent output current per channel with selectable thresholds, load dump protection (50 V), over- and undervoltage protection, and thermal fold-back and thermal protection.
- Interleaved power stages (optional) for improved EMC and reduced output-filter cost/complexity.
Applications
- Automotive head-unit radios.
- Automotive sound systems.
- Automotive-engine sound design.
- Active noise-cancellation systems.
- Generating ambient and/or engine sounds in electric vehicles.
Q & A
- What is the TDF8532BHH/N3K used for?
The TDF8532BHH/N3K is used in automotive applications for high-quality audio output in head-unit radios, sound systems, and active noise-cancellation systems.
- How many channels does the TDF8532BHH/N3K have?
The TDF8532BHH/N3K has four channels.
- What is the maximum output power per channel of the TDF8532BHH/N3K?
The maximum output power per channel is 80 W at 2 Ω loads.
- What is the supply voltage range for the TDF8532BHH/N3K?
The supply voltage range is from 5.5 V to 25 V.
- Does the TDF8532BHH/N3K support AEC-Q100 quality standards?
- What diagnostic features are available on the TDF8532BHH/N3K?
The device includes startup diagnostic for AC and DC coupled loads, supply voltage feedback with 8-bit resolution, and selectable clip detection.
- What protection features does the TDF8532BHH/N3K offer?
The device offers independent output current per channel with selectable thresholds, load dump protection (50 V), over- and undervoltage protection, and thermal fold-back and thermal protection.
- Can the TDF8532BHH/N3K drive external amplifiers?
- What is the package type of the TDF8532BHH/N3K?
The package type is 100-HLQFP (14x14).
- Is the TDF8532BHH/N3K suitable for use in electric vehicles?
