PSR Flyback using UCC28710 for Universal 85-265VAC Input with 12V/60W Rated Output Reference Design


Design files


This design uses the PSR controller UCC28710 for a 12V/60W DCM Flyback converter. The valley switching of the UCC28710 allows this low-cost design to achieve a maximum load efficiency of  84.3% at 120VAC/60Hz input and 86% at 230VAC/50Hz input.

  • Universal AC input: 85VAC-264VAC
  • DCM PSR controller UCC28710
  • 12V/60W rated output
  • Full load efficiency is 84.3% at 120VAC/60Hz input and 86% at 230VAC/50Hz input
Output voltage options PMP10350.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 12
Iout (Max) (A) 5
Output Power (W) 60
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Quasi Resonant
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU717.PDF (968 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDC841.ZIP (197 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC28710Constant-voltage, constant-current PWM with PSR, valley switching & Programmable cable compensation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10350 Test Results Jan. 05, 2015

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