This reference design uses TPS7H5020-SEP as a primary-side regulated (PSR) flyback converter. The input accepts a 22V to 36V range to generate a 12V bias referenced to primary ground and another 12V output that can be referenced to another return. This reference design can be used to provide bias power for isolated reference designs, like PMP23391. In this design the controller, half-bridge drivers and TI gallium nitride field-effect transistors (FET) are chosen to meet radiation for geostationary orbit (GEO). These components can be swapped out to meet other mission specifications.
| Output voltage options | PMP23546.1 | PMP23546.2 |
|---|---|---|
| Vin (Min) (V) | 22 | 22 |
| Vin (Max) (V) | 36 | 36 |
| Vout (Nom) (V) | 12 | 12 |
| Iout (Max) (A) | .1 | .1 |
| Output Power (W) | 1.2 | 1.2 |
| Isolated/Non-Isolated | Non-Isolated | Isolated |
| Input Type | DC | DC |
| Topology | Flyback | Flyback |
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
Files used for 3D models or 2D drawings of IC components
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 | 2.4W Multi-Output PSR Flyback Reference Design for Bias Supplies | PDF | HTML | Mar 14, 2025 |
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