15-W flyback reference design for automotive inverter power
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Key Document


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

  • Wide 40-V to 550-V input voltage range
  • Isolated 15-V output with 1-A maximum current
  • Peak efficiency of 86%
  • Automotive-qualified solution

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Design Files

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(Output Voltage 1)
Vin (Min) (V)40
Vin (Max) (V)550
Vout (Nom) (V)15
Iout (Max) (A)1
Output Power (W)15
Input TypeDC
TopologyFlyback- DCM

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28730-Q1  Zero-power standby PSR Flyback controller for automotive  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
UCC28730-Q1 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1042 26 Mar 2020
Design files (6)
Title Type Size (KB) Date
PDF 166 15 Jan 2021
PDF 175 15 Jan 2021
ZIP 697 26 Mar 2020
ZIP 693 26 Mar 2020
PDF 496 26 Mar 2020
PDF 114 26 Mar 2020

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