Universal AC Input, 24V/1A PFC-Flyback Reference Design


Design files


This UCC28050-based reference design provides both isolation and power factor correction in a single stage.  The circuit is built on a 76mm by 50mm, two layer board.  The test report documents performance with regards to efficiency, power factor, thermal, EMI, and more.

  • Single-stage reference design provides both power factor correction and regulation
  • Test report includes thermal and conducted EMI performance
  • Over 88% efficiency at full load
  • 75mm by 50mm circuit board on two layers
Output voltage options PMP11155.1
Vin (Min) (V) 90
Vin (Max) (V) 265
Vout (Nom) (V) 24
Iout (Max) (A) 1
Output Power (W) 24
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- PFC
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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.

TIDUDR6.PDF (4096 K)

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

TIDRT80.PDF (136 K)

Detailed schematic diagram for design layout and components

TIDRT81.PDF (101 K)

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

TIDRT82.PDF (80 K)

Detailed overview of design layout for component placement


Includes TI products in the design and potential alternatives.

Power factor correction (PFC) controllers

UCC28050Transition mode PFC controller with 15.6V/9.7V UVLO and IEC61000-3-2 compliance, -40°C to 105°C

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP11155 Test Results Oct. 24, 2017

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