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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

22-W/in3, 93.1% peak efficiency, 100-W USB-PD 3.0 AC/DC adapter reference design with Si MOSFET

This fully-tested reference design is a high-efficiency, high-power-density, AC/DC adapter solution with a wide input voltage range (100- to 240-V AC) for laptop adapters and smartphone charger applications. This design consists of a front-end transition-mode (TM) power factor correction (PFC (...)

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