This reference design is a low-side Buck (the output voltage is referenced to the positive DC input (+Vin node), not to the GND node). The controller drives a LED string up to 180V with 200mA constant current. The low-side Buck topology simplifies the schematic thanks to direct-driving of the FET, without the need of high-side driver.
| Output voltage options | PMP30439.1 |
|---|---|
| Vin (Min) (V) | 230 |
| Vin (Max) (V) | 230 |
| Vout (Nom) (V) | 180 |
| Iout (Max) (A) | .2 |
| Output Power (W) | 36 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck- Upside Down |
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
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 230 V in to 180 V out at 200 mA Constant-Current LED Driver Reference Design | Apr. 03, 2019 |
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