Hello,
I am currently doing repair for some inverters modules, most of the times, the MOSFETS are blown and with them, the optocupler.
The coupler being used is HCPL-3120 - AVAGO/BROADCOM
Unfortunatelly I've been having some discrepancies, some give me the right voltage for the driver to operate and some do not, during different tests, different time, I came to the conclusion that the manufacturer does not deliver the same quality and that voltage difference in VO make the whole circuit malfunction.
I'm trying to find a TI equivalent to this coupler.
Do you have any recommendation for this?
Thank yo very much in advance,
Regards,
Joel