This reference design is an isolated flyback that supplies four independent rails; each of them delivers 14 V @ 300 mA. The voltage feedback loop is closed to primary side, therefore, avoiding the optocoupler and increasing the reliability of the converter. The high switching frequency (500 KHz) allows the use of a small transformer and filter components. A digital enable input removes the bias voltage to the controller, therefore reducing the current consumption practically to zero.
| Output voltage options | PMP30700.1 | PMP30700.2 | PMP30700.3 | PMP30700.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 6 | 6 | 6 | 6 |
| Vin (Max) (V) | 27 | 27 | 27 | 27 |
| Vout (Nom) (V) | 14 | 14 | 14 | 14 |
| Iout (Max) (A) | .3 | .3 | .3 | .3 |
| Output Power (W) | 4.2 | 4.2 | 4.2 | 4.2 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | Flyback- Non Sync | Flyback- Non Sync | Flyback- Non Sync | Flyback- Non Sync |
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
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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 | Automotive Four-Rails 17-W Isolated Flyback Reference Design | Apr. 02, 2020 |
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