Other Parts Discussed in Thread: UCC21750
Dear Sirs.
I am building a 3 phase 30KW 96V automotive inverter. All SPWM waves circuits are already built, Now I am trying to build the last stage, the power one.
UCC21540- I choose this gate driver because it seems very new, I would like to ask a few quenstions
1) Is UCC21540 well choosen for drive MOSFET N transistors Example; SQM9014E? Or has TI other better model?
2) The maximum 3 phase motor current is arround 330A.
To get a good corrent I have to install at least 9 transistors in parallel for each arm. Total 9 transistors x 6 arms = 54 transistors; (9 x 98A) = 882A. Is UCC21540 good for driving all of these transistors?
3) VDDA/VSSA and VDDB/VSSB can be single tension, for example 12V/0V or must be dual tension for example: +12V /-4V to ensure that it can switch off very well the transistors?
Regards
Joaquim
