i hav requirement of 45W LED driver, but it can withstand 440VAC@50Hz for 3 Hrs continuously.
Pls advice whether it can be possible
I can't find an existing DER for a 440 VAC input. What I can suggest right now is to use a buck converter on LYTSwitch-4 of LNKSwitch-PH devices and use the 725V part.
At 440VAC, the peak drain voltage is around 630 V for a buck converter.
However, other components such as capacitors, bridge rectifiers, have to be properly rated as well.
Pls suggest a design with detailed ckt diagram
For this type of request, please contact your local FAE.
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