This reference design uses the LM3481 to provide an isolated 48-V output from a DC input ranging from 20 to 48-V. Its low profile design makes it suitable for applications where a small solution size is critical. The design achieves over 91% efficiency at a nominal 0.8-A load, and can provide a pulse up to 1.25-A.
| Output voltage options | PMP21030.1 |
|---|---|
| Vin (Min) (V) | 20 |
| Vin (Max) (V) | 48 |
| Vout (Nom) (V) | 48 |
| Iout (Max) (A) | 1.25 |
| Output Power (W) | 60 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Flyback- CCM |
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 overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
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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
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 20-48-Vdc Input Isolated Flyback Reference Design With a 48-V, 1.25-A Output | Apr 25, 2019 |
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