We’re running at about +100C down to about -40C.
The UC1825 looks as though the driver just stops outputting pulses at cold. I’ve monitored the current sense voltage going to the IC and it is not exceeding neither the foldback limit nor the shutoff limit. Obviously as the pulses go away, so does the output voltage.
Any idea what the problem could be? Thanks
-Tim Starr on behalf of BTC