Failed Led Driver Advice/help

Thread Starter

epicfatigue

Joined Feb 22, 2013
38
Morning everyone,

So i had a horrible day yesterday, i had two aquarium lights fail yesterday not sure what happened i think maybe a power surge?

I have attached some pictures as you can see it is running a pretty standard configuration of the PAM2861 as per their recommended schematic.
3leds in series with each PAM2861 using a SK34A diode and a 330 inductor.

I can get the PAM2861 pretty cheap off eBay, there is a total of 72 of them across the board, and 72 diodes to be replace.

The one IC i am having trouble identifying is this diode.
RV1 it is marked 27C looks like its some kind of suppression diode any ideas?

All led Modules appear to be perfectly fine.

PXL_20240415_114430287.jpg
PXL_20240415_103141993.jpg
 
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