Universal AC input, 48V/200W Primary-side Regulated Flyback Reference Design
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Key Document


The PMP10816 reference design uses the UCC28710 flyback controller to generate a 48V/200W output from a universal AC input. The primary-side regulation technique implemented by the UCC28710 eliminates the need for an opto coupler, reducing the size and cost of the design. In addition, the valley switching of the UCC28710 allows this design to achieve a maximum load efficiency over 89%, 87.5% average efficiency with 120VAC input and 88.6% average efficiency with 230VAC input.

  • Primary Side Regulation (no optocoupler)
  • 200W DCM Flyback with 89% Peak efficiency
  • 87.5% average efficiency @ 120VAC/60Hz
  • 88.6% average efficiency @230VAC/50Hz
  • 3.45" x 5.55" board dimension

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Design Files

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(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)264
Vout (Nom) (V)48
Iout (Max) (A)4.17
Output Power (W)200.16
Input TypeAC
TopologyFlyback- Quasi Resonant

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28710  Constant-voltage, constant-current PWM controller with primary-side regulation  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)
UCC28710 Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1316 25 Apr 2016
Design files (3)
Title Type Size (KB) Date
PDF 69 25 Apr 2016
PDF 138 25 Apr 2016
PDF 119 25 Apr 2016

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