This reference design describes an 18W power supply for driving a string of 13 LEDs (3.3V) at 420mA. The targeted application for this design is T8 fixtures transitioning from standard fluorescent tubes to more efficient LEDs. With an operating efficiency of over 87%, an input voltage range of 90 VAC - 275 VAC, and form factor of 282mm x 18mm, this design provides an ideal solution for this application. Test results provided in this design include EMI tests per CISPR22 Class B standard.
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
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Design file that contains information on physical board layer of design PCB
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP7672 Test Results | Mar. 10, 2014 | |
| More literature | PMP7672 Magnetic Details | Mar. 10, 2014 |
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