TPA3255 315W Stereo / 600W Mono Ultra-HD Analog-In Audio Class-D Module


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The TPA3255EVM Ultra-HD evaluation module demonstrates the TPA3255DDV integrated circuit from Texas Instruments. The TPA3255DDV is a high-performance Class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback design and high-speed gate driver error correction, 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 channels configurations. The NE5532 is a High Performance Audio Op Amp designed to allow TPA3255DDV operation with differential or single ended input signals to the EVM with differential inputs yielding the optimal performance. TPA3255EVM is a complete 2 VRMS analog input 2 × 325 W stereo/1 x 600 W mono power amplifier ready for evaluation and excellent listening experience.

  • Stereo Ultra-HD evaluation module
  • Self-contained protection system (short circuit, clip and thermal)
  • Standard 2 VRMS differential input  or single ended line input
  • BTL, PBTL and SE output configurations support
  • Double-sided, plated-through, 2oz. Cu 2 layer PCB layout
Speaker amps
TPA3255-Q1 Automotive, 315-W, 2-ch, 18- to 53.5-V supply analog input Class-D audio amplifier

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Evaluation board

TPA3255EVM – TPA3255 315W Stereo / 600W Mono Ultra-HD Analog-In Audio Class-D Module

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Design tool

TPA3255 Setup Guide & Configuration Tool (Rev. A) – SLAC733A.ZIP (350KB)

TI's Standard Terms and Conditions for Evaluation Items apply.

Design files

TPA3255EVM Schematic (Rev. A) SLAR129A.PDF (440 KB) TPA3255EVM BOM (Rev. A) SLAR130A.PDF (29 KB) TPA3255EVM PCB (Rev. A) SLAR131A.PDF (953 KB)

Technical documentation

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Type Title Date
* More literature TPA3255EVM Quick Start Guide Sep. 21, 2016
* User guide TPA3255EVM User's Guide Jul. 15, 2016
Certificate TPA3255EVM EU Declaration of Conformity (DoC) (Rev. A) Jan. 24, 2019
Application note Multi-Device Configuration for TPA32xx Amplifiers Sep. 27, 2017
Technical article Professional audio equipment made the most noise at the 2017 NAMM Show Mar. 14, 2017
Application note LC Filter Design (Rev. A) Nov. 09, 2016
Application note TPA32xx Analog Input Grounding for Single Ended Inputs Aug. 26, 2016
Technical article How Class-D amplifiers are closing the gap on hi-res Class-AB amplifiers Apr. 01, 2016
Technical article How to select an audio amplifier for products with internal or external speakers Feb. 29, 2016
Technical article Selecting the right inductor for ultra-low distortion Class-D audio amplifiers Jan. 29, 2016

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