TIDT276A april   2022  – july 2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Waveform

Description

This reference design provides an isolated +15-V,
22-W output with a flyback topology with the LM51561-Q1 controller. The power supply can be powered in a range from 200-V to 480-V DC input. This design is primary-side regulation without optocoupler and uses a dual random spread spectrum which reduces the EMI.