This reference design uses a rad-tolerant TPS7H5020-SEP pulse-width modulation (PWM) controller and rad-tolerant TPS7H6005-SEP 200V GaN half-bridge gate-driver to create a high efficiency synchronous forward topology. To have an accurate, direct sense of the output voltage and achieve a high loop bandwidth, the PWM controller is placed on the secondary side. The capacitively isolated TX and RX level shifters that are within the half-bridge gate- driver, transfer the PWM waveform from secondary to primary while maintaining electrical isolation.
| Output voltage options | PMP23598.1 |
|---|---|
| Vin (Min) (V) | 24 |
| Vin (Max) (V) | 36 |
| Vout (Nom) (V) | 5 |
| Iout (Max) (A) | 15 |
| Output Power (W) | 75 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Forward- 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 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 | 75W Synchronous Forward Converter Reference Design for Space Applications | PDF | HTML | Dec 11, 2025 |
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