Low Power Flyback Bias Supply Reference Design With Ultra Wide Input Voltage Range
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Key Document


The PMP20708 reference design uses UCC28881 low cost MOSFET integrated controller to provide 24V/30mA and 5V/30mA dual-output from an ultra-wide 24V to 264V (AC or DC) input. The board is in a small form factor of 30mm x 41mm x 12mm with minimized populated parts.

  • 24V to 265V input (AC or DC)
  • Board dimension: 30mm x 41mm x 12mm
  • 24V/30mA and 5V/30mA dual outputs
  • Test report 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)
(Output Voltage 2)
Vin (Min) (V)2424
Vin (Max) (V)265265
Vout (Nom) (V)245
Iout (Max) (A).03.03
Output Power (W).72.15
Input TypeACAC
TopologyFlyback- Non SyncFlyback- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28881  700-V Lowest Quiescent current off-line switcher  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)
UCC28881 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1985 15 Aug 2017
Design files (6)
Title Type Size (KB) Date
PDF 138 20 May 2020
ZIP 502 20 May 2020
ZIP 1186 15 Aug 2017
PDF 245 15 Aug 2017
PDF 81 15 Aug 2017
PDF 29 15 Aug 2017

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