Dual-Output 5V at 300mA and 15V at 100mA Isolated Flyback From 85V to 440V AC Mains Reference Design
PMP10236
(ACTIVE)
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
Description
This is an isolated quasi-resonant flyback converter, supplying 5 V at 300 mA and 15 V at 100 mA; both outputs are isolated from each other. The UCC28722 has been chosen to drive a low-cost high-voltage BJT transistor.
Features
- UCC28722-based isolated flyback
- 70% peak efficiency at full load 325-V DC input voltage
- Wide input voltage range: 85-V to 440-V AC
- Low cost due to main switch BJT transistor
- Magnetic feedback - no optocoupler needed
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Schematic/Block Diagram
Quickly understand overall system functionality.
Download Schematic
Design Guide
Get results faster with test and simulation data that's been verified.
Download Design Guide
TI Devices (1)
Order samples, get tools and find more information on the TI products in this reference design.
CAD/CAE symbols
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
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 http://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.
Technical Documents
See the Important Notice and Disclaimer covering reference designs and other TI resources.
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 702 |
28 Apr 2016
|
Design files (6)
| | ZIP | 181 |
28 Apr 2016
|
| | ZIP | 110 |
28 Apr 2016
|
| | PDF | 656 |
28 Apr 2016
|
| | PDF | 79 |
28 Apr 2016
|
| | PDF | 109 |
28 Apr 2016
|
| | PDF | 259 |
28 Apr 2016
|
Support & training
Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.
Search answers from TI experts
Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.
If you have questions about quality, packaging, or ordering TI products visit our Support page.
Worldwide (In English)
