TPA3250D2EVM: 130W x2 @ 4Ω, 18 ~ 38V in


This user’s guide describes the operation of the evaluation module (TPA3250D2EVM) for the TPA3250D2 175-W Stereo/350-W mono peak power PurePath™ Ultra-HD Analog Input Pad Down Class-D Amplifier.

The user’s guide also provides design information, which includes schematic, Bill of Material, and PCB layout. For questions and support go to the E2E forums (

The TPA3250D2EVM PurePath™ Ultra-HD evaluation module demonstrates the TPA3250D2DDV integrated circuit from Texas Instruments. The TPA3250D2DDV is a high-performance, high-power, class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advance integrated feedback design and high-speed gate driver error correction (PurePath Ultra-HD), which enables ultra-low distortion across the audio band and superior audio quality.

This EVM supports 2 BTL (stereo 2.0) output channels, 1 PBTL (mono 0.1) output channel, 1 BTL plus 2 SE (2.1) output channels, and 4 SE (4.0) output channel configurations. The NE5532 is a high-performance audio op amp designed to allow TPA3250D2DDV operation with differential or single-ended input signals to the EVM with differential inputs yielding the optimal performance. TPA3250D2EVM is a complete 2Vrms analog input 175 W stereo/350 W mono peak power (90 W Stereo continuous into 8 Ω) amplifier ready for evaluation and excellent listening experience.


Manufacturer Texas Instruments
Category Audio Amplifiers
Eval Board Part Number 296-43809-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Amplifier Type Class D
Number of Outputs Stereo
Output Power (RMS) @ Load 130 W x 2 @ 4 Ω
Voltage In 18 ~ 38 V
THD+N (1kHz) @ Conditions < 0.015% @ 1 W (4 Ω, 32V)
Features Click and Pop Suppression
Current Limit (Adj. or Fixed)
Over Current Protection
Short Circuit Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >70%, 32 Vin, 1kHz @ 3 ~ 130 W (4 Ω)
>70%, 32 Vin, 1 kHz @ 1.7 ~ 110 W (8 Ω)
Component Count + Extras 146 + 31
Design Author Texas Instruments
Application / Target Market DVD Players
Hi Fi Audio
Home Theater
Powered Speakers
Standby Current [Typical] 12.5 mA
Quiescent Current [Typical] 1 mA
Standby Current [Maximum] - Not Given
Quiescent Current [Maximum] - Not Given
Main I.C. Base Part TPA3250D2

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