This reference design generates a 28V/5A output from a 36V to 75V telecom input. The UCC2897A controls an active clamp forward converter power stage. The output is adjustable within a 22V to 32V range. The UCC27511 is used to drive synchronous rectifiers, and provides for a highly efficient design. This design is laid out on a circuit board with pin placement that is compatible with a 1/4 brick footprint and achieves efficiencies over to 94%. It uses only surface mount components, including ceramic output capacitors.
| Output voltage options | PMP9127.1 |
|---|---|
| Vin (Min) (V) | 36 |
| Vin (Max) (V) | 75 |
| Vout (Nom) (V) | 28 |
| Iout (Max) (A) | 5 |
| Output Power (W) | 140 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Forward- Active Clamp^Forward- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | PMP9127 Test Results | Oct. 23, 2013 |
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