This flyback reference design is for an isolated 15-W low voltage rail. It features a LM5020—100-V wide input flyback controller. A synchronous secondary rectifier UCC24610 was used for high efficiency. It further enhances the LM5020 with hiccup protection by using a simply discrete circuitry. It is good for low voltage isolated supplies where high efficiency and hiccup protection are needed.
| Output voltage options | PMP21488.1 |
|---|---|
| Vin (Min) (V) | 43 |
| Vin (Max) (V) | 57 |
| Vout (Nom) (V) | 3.3 |
| Iout (Max) (A) | 4 |
| Output Power (W) | 13.2 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Flyback- Synchronous |
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
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 | A high efficiency 3.3-V/4-A synchronous flyback reference design | Jan. 04, 2019 |
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