UCC28740 (ACTIVE) Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback


Models (1)

Title Category Type Size (KB) Date Views
UCC28740 Macromodels Transient (Rev. A) Macromodels ZIP 122 KB 07 Jan 2019 0 views

Design kits & evaluation modules (2)

Name Part# Type
UCC24630 65W AC/DC Adapter UCC24630EVM-636 Evaluation Modules & Boards
UCC28740EVM-525 Evaluation Module UCC28740EVM-525 Evaluation Modules & Boards

Reference designs

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TI Designs

15-W opto-regulated multi-output flyback converter reference design for auxiliary supply

This reference design is an isolated opto-regulated, multi-output, 15-W flyback converter. Both 28-V and 7-V outputs are contributing to the voltage regulation on secondary side, while a third output (14 V at 100 mA) is referenced to the primary side ground. This converter has low stand-by power (...)

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Description Part Number Company Tool Type
85 to 265VAC Input 4W Dual Output 12 and 3.3V Flyback Reference Design PMP9213 Texas Instruments Reference designs
Universal AC Input 14V/2.4A Flyback With 88% Efficiency Reference Design PMP9144 Texas Instruments Reference designs
Universal AC Input 5V/2A USB Adaptor with DCM/Valley-Switching and Opto Feedback Reference Design PMP9204 Texas Instruments Reference designs

Software (1)

UCC28740 Design Calculator (Rev. B)  (ZIP 317 KB )    06 Apr 2016  

WEBENCH ® Designer UCC28740

 AC  DC  
AC Frequency  60 Hz  50 Hz
Use Isolated Output?
Rectification Type
  Min   Max Range
VinRMS -  V
Vout  V
Iout  A
Ambient Temp  °C