TIDT375 December   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
    3. 1.3 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Data
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Start-Up Sequence

Description

This reference design is a 1.1-kW, high-density, 48-V to 12-V open-loop bus converter. The design achieves 97.7% efficiency and is implemented with TI's high-performance gallium nitride (GaN) switches. An integrated printed wiring board (PWB) transformer is utilized to minimize size and maximize efficiency. The control is implemented with a UCD3138ARJAT high-performance microcontroller in a 40-pin QFN package.