TAS6501-Q1中文资料具有负载突降保护功能的汽车级、2.1MHz、30W 单声道、数字输入的 D 类音频放大器数据手册TI规格书

描述 Description

The TAS6501-Q1 is a mono-channel, digital-input, Class-D audio amplifier that supports 2MHz switching frequency enabling a cost and size-optimized single-channel audio amplifier design. The device operates from 4.5V to 19V and delivers up to 15W (14.4V, 4Ω, 10% THD+N). The device integrates DC and AC load diagnostics to determine the status of the connected load before enabling the output stage. Additionally, the device can monitor the output load condition while in PLAY mode with or without audio using real-time load diagnostics which operates independently from the host and audio input.

TAS6501-Q1 can monitor the output current, PVDD voltage, and temperature of the device and can report this data through TDM or I2S. The integrated DSP of the TAS6501-Q1 enables advanced protection features such as PVDD foldback, thermal foldback, and Speaker Guard™ Pro power limiter. The DSP also enables an additional low-latency signal path, providing up to 70% faster signal processing at 48kHz for time-sensitive Active Noise Cancellation (ANC) and Road Noise Cancellation (RNC) applications.

The device is available in a small pad-down TSSOP and QFN with wettable flanks packages, enabling a heatsink-free audio amplifier design.

特性 Features

AEC-Q100 qualified for automotive applications

Temperature grade 1: –40°C to +125°C, TA



General operation

4.5V to 19V supply voltage, 40V load dump

Support for 1.8V and 3.3V I/O’s

I2C control with 8 address options

<0.5W idle power loss at 14.4V, <5uA max PVDD shutdown loss



Output current sensing via I2S or TDM

No need for external circuitry



Real-time load diagnostics

Monitor output conditions while playing audio

Open load, Shorted load, Short-to-power, Short-to-ground detection



Integrated DSP processing

Thermal monitoring and foldback

PVDD monitoring and foldback

Clip detection

Low Latency Path, >70% reduced signal delay at 48kHz



DC and AC Standby load diagnostics

Audio inputs

I2S and TDM support up to TDM16

Input sample rates: 16, 32, 44.1, 48, 96, 192kHz



Audio outputs

384kHz to 2MHz configurable output switching frequency

15W (14.4V, 4Ω, 10% THD+N)



Audio Performance

THD+N <0.02% (4Ω, 1W, 1kHz)

105dB SNR

Output noise: 41µVRMS at 14.4V, A-weighting



Protection

Output short protection

Speaker GuardTM Pro power limiter

Configurable overtemperature warning and shutdown

I2C temperature and supply voltage readout

DC offset, undervoltage and overvoltage



Easily meet CISPR25-L5 EMC specification

Advanced spread-spectrum