SMPS controller help

[Nevillet]

Hi All,

I'm trying to repair a PCB that controls a kitchen extractor hood. The PCB has a switching controller that appears faulty and I'm looking for an alternative – if possible.

The device is a through hole 7 pin DIP package named LN5R05C.
https://www.jotrin.com/product/parts/LN5R05C

I'm hoping it can be replaced with a generic switch controller. My usual supplier has these:

https://cpc.farnell.com/w/c/electron...se_package=DIP

Many thanks.






Neville