3 ms·

Er, I should say "tested at 0.6A" MOSFETs. If they have thin bond wires or something, it's plausible that excess current just vaporized them. If they never test

Er, I should say "tested at 0.6A" MOSFETs. If they have thin bond wires or something, it's plausible that excess current just vaporized them. If they never tested them at 6A, and skimped on the gauge... I also saw a couple instances where the trace to the gate blew up (like, black board, no copper, looks like a burnt fuse), so it's possible that static during manufacturing killed their FETs even before they shipped. (We're pretty good about static, and if it was our fault I think maybe one drive/channel would die, not several)

omgtehlion 14y ago
> Er, I should say "tested at 0.6A" MOSFETs yes, that would be better. in reality parameters of transistors vary. but when it is off by an order of magnitude these parts (and actually the whole batch) go to trash. > trace to the gate blew up if it really was trace to the _gate_ then it might be blown after mosfet itself melted. Because even really fat FETs (with high gate capacity, D-S rated to hundreds of amperes) cannot do this to copper trace.