TIDT297 July   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Design Information
    1. 1.1 Voltage and Current Specifications
    2. 1.2 Dimensions
    3. 1.3 System Schematic
  5. 2Testing and Results
    1. 2.1 Output Voltage Regulation
    2. 2.2 Efficiency Graphs
    3. 2.3 Efficiency Data
    4. 2.4 Thermal Images
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple

Description

This reference design generates two isolated +12-V rails at 100 mA each from a 12-VDC input voltage. The design is optimized for a small footprint by employing a primary resonant LLC topology with a single UCC25800 driver and a transformer with reinforced insulation. This design is well-suited for an application where bias power is needed across a high-voltage isolation barrier.