This reference design demonstrates a cost focused approach of an isolated power supplies with low current capability. The design consists of three designs of three different topologies. All three design options are based on a high voltage comparator TLV1805-Q1 which works as a free-running oscillator and a driver. All three are unregulated, and the ouptut voltage directly depends on the input voltage.
| Output voltage options | PMP21953.1 | PMP21953.2 | PMP21953.3 |
|---|---|---|---|
| Vin (Min) (V) | 8 | 8 | 8 |
| Vin (Max) (V) | 36 | 36 | 36 |
| Vout (Nom) (V) | 7 | 14 | 14 |
| Iout (Max) (A) | .05 | .05 | .05 |
| Output Power (W) | .35 | .7 | .7 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC |
| Topology | Other | Other | Other |
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
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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
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 40-V Isolated Comparator-Based Power Supply Reference Design (Rev. A) | Jun. 04, 2019 |
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