15-W flyback reference design for automotive inverter power


Design files


This reference design uses the UCC28730-Q1 flyback controller to produce an isolated 15-V output. The design is capable of 0.33 A from 40-V to 250-VDC input and 1 A from 250-V to 550-VDC input. This power reference design is applicable for an inverter bias supply application and is automotive-qualified.

  • Wide 40-V to 550-V input voltage range
  • Isolated 15-V output with 1-A maximum current
  • Peak efficiency of 86%
  • Automotive-qualified
Output voltage options PMP22288.1
Vin (Min) (V) 40
Vin (Max) (V) 550
Vout (Nom) (V) 15
Iout (Max) (A) 1
Output Power (W) 15
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- DCM
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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.

TIDT168.PDF (1076 K)

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

TIDM512D.PDF (210 K)

Detailed schematic diagram for design layout and components

TIDM513C.PDF (154 K)

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

TIDM514.PDF (114 K)

Detailed overview of design layout for component placement

TIDM516B.ZIP (758 K)

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


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

TIDM515A.ZIP (11490 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 15-W Flyback Reference Design for Automotive Inverter Power Mar. 26, 2020

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