Ultra-Wide Input Voltage Range PSR Flyback Converter Reference Design
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Key Document


The PMP10200 reference design uses the UCC28700 primary-side regulated quasi-resonant flyback controller to generate a 28V output from an DC input. The input voltage range is between 25VDC and 520VDC. It is a low cost solution because no optocoupler is needed to regulate the output voltage.

  • Quasi-Resonant Flyback Topology
  • Ultra-Wide Input Voltage Range
  • High Efficiency
  • No Need For an Optocoupler
  • This reference design was built and tested and the test report is included

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Schematic/Block Diagram

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Design Guide

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Design Files

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(Output Voltage 1)
Vin (Min) (V)25
Vin (Max) (V)520
Vout (Nom) (V)28
Iout (Max) (A).715
Output Power (W)20.02
Input TypeDC
TopologyFlyback- Quasi Resonant

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28700  Constant-voltage, constant-current PWM with PSR & Programmable cable compensation  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
UCC28700 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1195 23 Sep 2015
Design files (3)
Title Type Size (KB) Date
PDF 115 17 Nov 2016
ZIP 326 23 Sep 2015
PDF 133 23 Sep 2015

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