TPA3128D2 2×30-W Class-D Amplifier With Low Idle Power Dissipation Evaluation Module


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The TPA3128D2EVM allows for the evaluation of the TPA3128D2. This is an efficient class D audio power amplifier for driving 2 bridged-tied stereo speakers at 30W per channel.  The TPA3128D2 has low idle power loss and helps to extend the battery-life of Bluetooth/Wireless speaker and other battery powered audio system.  The evaluation module is populated with only 1 TPA3128D2 device. It operates from a single power supply from 4.5V to 26V.  The TPA3128D2 devices are fully protected against faults with short-circuit protection and thermal protection with an auto recovery feature.

The TPA3128D2 device supports Parallel BTL Mode and Mono-Channel Mode.

  • Supports Multiple Output Configurations
    • 2 × 30 W Into a 8Ω- BTL Load at 24 V
    • 65W Into a 2Ω- PBTL Load at 18 V
  • Wide voltage range:  4.5V to 26V
  • Efficient Class-D Operation
    • Up to 90% power efficiency combined with low idle loss
    • Adapative modulation schemes based on output power
  • Supported with user's guide and easy-to-use EVM
  • 300-KHz to 1.2-MHz switching frequency
  • AM avoidance
  • Programmable power limit
  • 4 different gain settings under master or slave mode
Speaker amps
TPA3128D2 30-W stereo, 60-W mono, 4.5- to 26-V, analog input Class-D audio amplifier w/ low idle current
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TPA3128D2EVM — TPA3128D2 2×30-W Class-D Amplifier With Low Idle Power Dissipation Evaluation Module

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Type Title Date
* User guide TPA3128D2 Evaluation Module 06 Dec 2016
Certificate TPA3128D2EVM EU Declaration of Conformity (DoC) 02 Jan 2019
Technical article What are the building blocks of Bluetooth speakers? 21 Feb 2017
More literature TPA3128D2EVM Quick Start Guide 30 Jan 2017

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