TPA3251D2EVM: 350W x1 @ 2Ω, 175W x2, 12 ~ 36V in

This user’s guide describes the operation of the evaluation module (TPA3251D2EVM) for the TPA3251D2 175-W Stereo/350-W mono PurePath™ Ultra-HD Analog Input Power Stage. The user’s guide also provides design information, which includes schematic, BOM, and PCB layout.

The TPA3251D2EVM PurePath™ Ultra-HD evaluation module demonstrates the TPA3251D2DDV integrated circuit from Texas Instruments. The TPA3251D2DDV 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 TPA3251D2DDV operation with differential or single-ended input signals to the EVM with differential inputs yielding the optimal performance. TPA3251D2EVM is a complete 2 VRMS analog input 2 × 175-W stereo/1 × 350-W mono high-power amplifier ready for evaluation and excellent listening experience.