36V-75Vdc Input, 5V/50W 1/8 Brick Active Clamp Forward Reference Design
PMP9108
(ACTIVE)
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Description
This reference design generates a 5V/10A output from a standard telecom 48V DC input. The UCC2897A controls an active clamp forward converter power stage. The low gate charge and low RDSon of the CSD17309Q3 and CSD18540Q5B, implemented as self-driven synchronous rectifiers, allow this design to achieve a max load efficiency over 93%. This design uses only ceramic output capacitors for high reliability and uses 100% surface mount components. The board is laid out on a standard eighth brick footprint.
Features
- Industry standard 1/8 Brick Footprint, 0.9" x 2.3" (23mm x 58mm)
- High efficiency (greater than 93%)
- All ceramic output capacitors
- Self-driven synchronous rectifiers reduce drive complexity
- 100% surface mount components
- Low profile - 0.35" (9mm) maximum top side component height
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Schematic/Block Diagram
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Test Data
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TI Devices (3)
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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.
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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.).
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Technical Documents
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 3971 |
10 Sep 2014
|
Design files (5)
| | ZIP | 557 |
10 Sep 2014
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| | PDF | 1036 |
10 Sep 2014
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| | PDF | 148 |
10 Sep 2014
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| | PDF | 83 |
10 Sep 2014
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| | PDF | 135 |
10 Sep 2014
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