UCC28780
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Adaptive zero voltage switching active-clamp flyback controller

 

Models (2)

Title Category Type Date
UCC28780 Si SIMPLIS Model SIMPLIS Model ZIP 18 Jul 2018
UCC28780 GaN SIMPLIS Model SIMPLIS Model ZIP 26 Feb 2018

Design kits & evaluation modules (2)

Name Part# Type
UCC28780 active clamp flyback 45W AC/DC EVM with GaN FET UCC28780EVM-002 Evaluation Modules & Boards
UCC28780 active clamp fyback converter 45W EVM with UCC24612 and Si MOSFET UCC28780EVM-021 Evaluation Modules & Boards

Reference designs

High efficiency, 70-W AC/DC active clamp flyback reference design

This reference design uses the UCC28780 active clamp flyback controller to generate an isolated output of 20 V @ 3.5 A over an input voltage rage of 90 Vac to 264 Vac. The design also uses the UCC24612 synchronous rectifier controller on the secondary side. Zero voltage switching (ZVS) ensures high (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Software (2)

UCC28780 Excel Design Calculator (Rev. B)  (ZIP 491 KB )    17 Jun 2019  
UCC28780 Mathcad Design Calculator  (ZIP 8301 KB )    21 Nov 2017