SLVT254 August   2026

 

  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
  8. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Start-up Sequence
  9. 4Trademarks

Description

This reference design is a high-conversion ratio flyback converter that steps up a 48V input to a regulated 960V output. The single stage design achieves less than 0.5% output ripple with minimal output capacitance used. LM5156 is used to implement the non-synchronous current-mode control design. RES60A500-Q1 scales the output voltage to a safe level for the pulse-width modulation (PWM) controller.