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



  • 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

Texas Instruments  TPA3128D2EVM

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.