Hello. I made a design with the LM5117 in CC+CV mode according to the datasheets and spreadsheet calculators. In a few prototypes, the input current draw ramps up very high even when there is no load and eventually damages the high transistor. I presume it would fail faster if it wasn't for the long soft start. The design uses an external Vcc supply of 11.5V.
I'm hoping for a few pointers on where to start troubleshooting this issue. My company policy doesn't let me post the schematic publicly - is there a way I can have troubleshooting support without publishing the schematic publicly?
