This reference design uses the UCC28740 flyback controller to generate both 12-V/1-A and 48-V/0.4-A outputs from a 120-V AC input. The valley switching of the UCC28740 allows this design to provide an efficiency of over 89%; no load losses are less than 80 mW.
| Output voltage options | PMP9727.1 | PMP9727.2 |
|---|---|---|
| Vin (Min) (V) | 85 | 85 |
| Vin (Max) (V) | 132 | 132 |
| Vout (Nom) (V) | 48 | 12 |
| Iout (Max) (A) | .4 | 1 |
| Output Power (W) | 19.2 | 12 |
| Isolated/Non-Isolated | Isolated | Isolated |
| Input Type | AC | AC |
| Topology | Flyback- DCM^Flyback- Non Sync^Flyback- Quasi Resonant | Flyback- DCM^Flyback- Non Sync^Flyback- Quasi Resonant |
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
Detailed overview of design layout for component placement
Design file that contains information on physical board layer of design PCB
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP9727 Test Results | Jul. 16, 2015 | |
| Technical article | Power Tips: Voltage mode or current mode? | PDF | HTML | Oct. 02, 2015 |
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