Other Parts Discussed in Thread: UCC27624
Dear TI team,
I am contacting you as we are using a gate driver UCC27524AQDGNRQ1 from TI to drive SiC mosfets.
We sporadically have failures that look like a shoot-through of the half-bridge and we are investigating this issue.
The gate driver UCC27524AQDGNRQ1 is supplied by VDD to +15V and VSS -2V (17 V total). However, from the waveforms we are seeing values more in the range of 18-19 V.
From your datasheet I can read that the maximum supply of this chip is 20 V, recommended 18V. Can you think of this chip being damaged or overstressed by our voltage?
The failures occur usually after 2-3 hours of operation and not on all units, however, we are still into development phase, so not many units have been produced and tested so far.
Thank you very much,