Universal AC Input 5V/10A/50W PSR Flyback Power Supply With Over 89% Avg Efficiency Reference Design


Design files


PMP10974 is a quasi-resonant Flyback power suppy based on the UCC28730 primary side regulation (PSR) controller. The elimination of optocoupler using PSR topology promises higher reliability and lower system cost. The design achieves less than 40mW standby power losses and over 89% average efficiency. The design also features UCC2463x synchronous rectification controller.

  • 85VAC to 265VAC, 50/60Hz input 5V/10A/50W output
  • Over 89% average 4-point efficiency
  • Over 85% efficiency at 10% load (5W)
  • Less than 40mW standby power losses
  • Protected against output short-circuits
Output voltage options PMP10974.1
Vin (Min) (V) 85
Vin (Max) (V) 264
Vout (Nom) (V) 5
Iout (Max) (A) 10
Output Power (W) 50
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.

TIDUAF5.PDF (1541 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


Files used for 3D models or 2D drawings of IC components


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.

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Technical documentation

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Type Title Date
* Test report PMP10974 Test Results Aug. 12, 2015

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