This offline flyback reference design uses the UCC28742 controller to generate a non-isolated output (15 V at 130 mA) and an isolated output (24 V at 830 mA) from an AC input (90 VAC - 265 VAC). The UCC28742 provides a cost effective and precise constant-voltage and constant-current regulation. The valley-switching technique reduces switching losses and keeps the efficiency high.
| Output voltage options | PMP30545.1 | PMP30545.2 |
|---|---|---|
| Vin (Min) (V) | 90 | 90 |
| Vin (Max) (V) | 265 | 265 |
| Vout (Nom) (V) | 24 | 15 |
| Iout (Max) (A) | .83 | .13 |
| Output Power (W) | 19.92 | 1.95 |
| Isolated/Non-Isolated | Isolated | Non-Isolated |
| Input Type | DC | DC |
| Topology | Flyback- Quasi Resonant | Flyback- Quasi Resonant |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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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
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Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 90-VAC - 265-VAC Input, Non-Isolated Flyback Ref Design With Multiple Output | Dec. 11, 2018 |
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