High power 20W non-isolated buck LED driver based on LNK460KG design, with circuit diagram, bill of materials, specification file, printing

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Summary:

This document describes a non-isolated, high efficiency, high power factor (PF) LED driver. It provides 85 V, 240 mA drive for LED strings over an input voltage range of 195 VAC to 265 VAC (47 Hz – 63 Hz). This LED driver is designed using the LinkSwitch-PL family of devices, the LNK460KG.

This document contains LED driver specifications, schematics, bill of materials, transformer specification files, and typical performance characteristics.

20W non-isolated buck LED driver PCB physical map

20W non-isolated buck LED driver circuit diagram

20W non-isolated buck LED driver PCB layout

20W non-isolated buck LED driver component list

See the uploading documentation for details (click to download)