Hi I have a PIC18F46K22 MCU and I am using the CPP1 PWM to drive a high power mosfet. The problem I have is very quickly the mosfet remains on and will not switch off.
I have connected the MCU CPP1 pin to a microchip Driver TC1412NEOA this is then connected to a IXFH60N50P3 mosfet NPN type and I have placed a diode SDP30S120 to the positive 330V DC and negative to the drain side of the mosfet. I am only drawing approximately 10 amps when the load is applied to the mosfet I think this is a standard way of connecting these components together and in previous designs using only 12V DC I have had no problem driving a mosfet via the same MCU. Dose anyone have any possible suggestions as to what might be wrong and causing the mosfet to fail and remain on.