4W high power non-isolated buck-boost LED driver based on LNK456DG design, with circuit diagram, bill of materials, specification

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Summary:

This document describes a non-isolated high power factor (PF), TRIAC dimmable LED driver. It can supply LED strings with a rated voltage of 100 V and a rated current of 40 mA over an input voltage range of 190 VAC to 265 VAC. This LED driver is designed using the LinkSwitch-PL family of devices, the LNK456DG.

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

4W high power non-isolated buck-boost LED driver PCB physical map

4W high power non-isolated buck-boost LED driver circuit diagram

4W High Power Non-Isolated Buck-Boost LED Driver PCB Layout

See the uploading documentation for details (click to download)