60V to 1000V input, triple output 10W PSR flyback reference design


Design files


This reference design uses the UCC28730-Q1 flyback controller to produce an isolated 33V output. The design is capable of three 100mA outputs from a 60-V to 1000Vdc input. It is designed to be a bias supply for a traction inverter with an automotive-qualified controller.

  • Wide-input voltage range
  • Isolated outputs
  • High efficiency
  • Primary-side regulation for small size
Output voltage options PMP23431.1
Vin (Min) (V) 60
Vin (Max) (V) 1000
Vout (Nom) (V) 33
Iout (Max) (A) .3
Output Power (W) 9.9
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback
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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.

TIDT358.PDF (700 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

TIDMCY0.ZIP (2544 K)

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

TIDCGP1.ZIP (6313 K)

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

TIDMCX9.PDF (1100 K)

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)

UCC28730-Q1Zero-power standby PSR flyback controller for automotive

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 60V to 1000V Input, Triple Output 10W PSR Flyback PDF | HTML May 10, 2024

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