This reference design provides an isolated 12-V, 48-W output power conversion with cascaded flyback topology. The power supply can be powered from the 300-V to 1,000-V direct current (DC) input. This design uses valley switching flyback controller UCC28730 to achieve less than 70-mW low standby power consumption at 1,000-V input voltage to extend the battery lifetime.
| Output voltage options | PMP41063.1 |
|---|---|
| Vin (Min) (V) | 300 |
| Vin (Max) (V) | 1000 |
| Vout (Nom) (V) | 12 |
| Iout (Max) (A) | 4 |
| Output Power (W) | 48 |
| Isolated/Non-Isolated | Isolated |
| Input Type | AC |
| Topology | Flyback- DCM |
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
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Design file that contains information on physical board layer of design PCB
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Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | 300-V to 1,000-V Input 48-W Isolated Auxiliary Power RefDes W/ Low Standby Power | PDF | HTML | Nov. 09, 2023 |
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