Universal Input to 12V@670mA & -10V@50mA Isolated Flyback with Integrated Switch Reference Design


Design files


A quasi-resonant primary-side regulated Flyback supplies an isolated output 12V @ 670mA and non-isolated output -10V @ 50mA from universal input voltage (90Vac to 270Vac). The controller integrates 700V FET and the board is able to withstand up to 350VAC without damage and switches OFF for Vin > 285VAC.

  • Simple isolated PSR flyback converter with integrated 700V FET
  • Compact solution supplies 8.5W with almost flat efficiency (70%...81%) from 5% to 100% load
  • Opto-less topology increases the reliability of the power supply
  • Good cross-regulation performance between outputs (+/-5% on main output)
Output voltage options PMP30070.1 PMP30070.2
Vin (Min) (V) 90 90
Vin (Max) (V) 270 270
Vout (Nom) (V) 12 -10
Iout (Max) (A) .67 .05
Output Power (W) 8.04 .5
Isolated/Non-Isolated Isolated Non-Isolated
Input Type AC AC
Topology Flyback- Integrated Switch Flyback- Integrated Switch

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.

TIDUCJ9.PDF (1824 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

TIDROJ5.PDF (1117 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Flyback controllers

UCC28911700V Flyback switcher with constant-voltage constant-current and primary-side regulation

Data sheet document-pdfAcrobat PDF open-in-new HTML
Supervisor & reset ICs

LM8364Active-low voltage monitor with low quiescent current & 2.5% threshold accuracy

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
* Test report PMP30070 Test Results Nov. 04, 2016

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