Exceeding Gate-Source Voltage Ratings

ysfherdem

Hi,

I am using QA123C-1504R3 to drive C3M0045065D but the gate voltages exceed 15V and -4V because of the tolerances of the converter module. Should I use an additional LDO regulator or something? The converter module's voltages are 16.7V and -4.6V at 10% load.

Cannot I drive this MOSFET at 100% duty cycle with these voltage levels?

Also why the static gate voltages are so sharp?