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1 Features

1? Differential Analog Inputs

? Total Output Power at 10%THD+N

– 70-W Stereo Continuous into 8 Ω in BTL

Configuration at 32 V

– 130-W Stereo Peak into 4 Ω in BTL

Configuration at 32 V

? Total Output Power at 1%THD+N

– 60-W Stereo Continuous into 8 Ω in BTL

Configuration at 32 V

– 105-W Stereo Peak into 4 Ω in BTL

Configuration at 32 V

? Advanced Integrated Feedback Design with Highspeed

Gate Driver Error Correction

(PurePath? Ultra-HD)

– Signal Bandwidth up to 100 kHz for High

Frequency Content From HD Sources

– Ultra Low 0.005% THD+N at 1 W into 4 Ω and

<0.01% THD+N to Clipping

– 60 dB PSRR (BTL, No Input Signal)

– <60 μV (A-Weighted) Output Noise

– >110 dB (A Weighted) SNR

? Multiple Configurations Possible:

– Stereo, Mono, 2.1 and 4xSE

? Click and Pop Free Startup and Stop

? 92% Efficient Class-D Operation (8 Ω)

? Wide 12-V to 36-V Supply Voltage Operation

? Self-Protection Design (Including Undervoltage,

Overtemperature, Clipping, and Short Circuit

Protection) With Error Reporting

? EMI Compliant When Used With Recommended

System Design

2 Applications

? High End Soundbar

? Mini Combo Systems

? Blu-ray Disk? / DVD Receivers

? Active Speakers

3 Description

The TPA3250 device is a high performance class-D

power amplifier that enables true premium sound

quality with class-D efficiency. It features an

advanced integrated feedback design and proprietary

high-speed gate driver error correction (PurePath?

Ultra-HD). This technology allows ultra low distortion

across the audio band and superior audio quality.

With a 32V power supply the device can drive up to 2

x 130 W peak into 4-Ω load and 2 x 70 W continuous

into 8-Ω load and features a 2 VRMS analog input

interface that works seamlessly with high

performance DACs such as TI's PCM5242. In

addition to excellent audio performance, TPA3250

achieves both high power efficiency and very low

power stage idle losses below 1 W. This is achieved

through the use of 60 mΩ MOSFETs and an

optimized gate driver scheme that achieves

significantly lower idle losses than typical discrete

implementations.