Current Increasing inside housing - lnk420
Posted by: rohan_shah
on
Hi,
I'm developing 50W (23V, 2.1A) led driver using LNK420. Design worked perfectly when tested outside housing. But when I put my driver on metal housing base, current jumps to 2.5A.
Comments
Hi,
Pls review the layout of theboard especially the V-pin of the IC. A noise injected on this pin could result on output power variation.
Regards
I am attaching the images of the problem I'm facing. Housing is flood light housing designed for 50W.