UCC28740
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
Constant-voltage, constant-current Flyback controller Using Opto-Coupler Feedback

 

Models (1)

Title Category Type Date
UCC28740 SIMPLIS Transient Model (Rev. A) SIMPLIS Model ZIP 07 Jan 2019

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

Offline supercapacitor backup power supply with active cell balancing reference design

This reference design provides a backup voltage during a power interruption. It manages the charging of supercapacitors directly from the mains voltage (96 VAC - 272 VAC). The UCC28740 provides constant-voltage (CV) and constant-current (CC) output regulation. The supercapacitor capacitance and (...)

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

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  

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
UCC28740 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Please follow the instructions below to view the CAD symbols:

Step 1: Download and install the Ultra Librarian software

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Step 3: Open the .bxl file with the Ultra Librarian software.

You can always access the complete CAD/CAE Symbols database at //webench.ti.com/cad/

Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a free download.

The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.

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