LNK302 and LNK362

Posted by: pf26 on 10/16/2009

Hello,

I have it hard to find LNK302P. So I used LNK362P instead. It seems to work but I have a 300mW no-load power consumption (unisolated high side buck opto feedback).
Is it safe to use LNK362 instead of LNK302 in this config?
Would the no-load power consumption decrease if I used LNK302P instead ?
Thanks,
Pierre.

Comments

The LNK-302 has fewer functions as compared to the LNK36X family and so the LNK302 should have less no load consumption.

Hi:

I'm new to PI forum so I appologise if I'm writing on the wrong place.

I'm using LNK302 with 230V~ input to produce 24VDC to supply a light switch. When switching inductive loads (e.g. ferromagnetic ballats) the module explodes. Attached is the schematic. If I use a normal RC power supply it works fine and never blows up. How can I protect the circuit? I prefer using LNK302 because I need universal power supply range (110 to 230 V~).

Any help is welcome.

Attachment	Size
Schematic.pdf (20.92 KB)	20.92 KB

Hi,

Yes, you can use LNK362 instead. There should not be much difference in no load input power.

thanks

PI-Sarek