TIDT264 March   2022

 

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

Description

This reference design generates an isolated 2-W output (+3.3 V) from the AC line of 120 VAC. The UCC28911 device incorporates a 700-V power MOSFET and PSR controller. The design is made with the intention of achieving a low height of 0.25 in.