SLVT233 December   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  7. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  8. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
  9. 4Trademarks

Description

This reference design uses a rad-tolerant TPS7H5020-SEP pulse-width modulation (PWM) controller and rad-tolerant TPS7H6005-SEP 200V GaN half-bridge gate-driver to create a high efficiency synchronous forward topology. To have an accurate, direct sense of the output voltage and achieve a high loop bandwidth, the PWM controller is placed on the secondary side. The capacitively isolated TX and RX level shifters that are within the half-bridge gate-driver, transfer the PWM waveform from secondary to primary while maintaining electrical isolation.