Tool/software:
Hi TI Community,
We are using UCC28180DR to control and drive a boost PFC with 400V dc output voltage and 1 kW rating. IC peripherals are highlighted in the image shared below.
We are facing hardware damage issue where in the shunt current sense resistors and MOSFET gets damaged. As per the datasheet, IC provides soft overcurrent feature and peak overcurrent limit (PCL). Using design guide provided by TI, the calculated value for PCL is 29.2 Amps. At the same time selected MOSFET, IPP60R120P7 has a pulsed current rating of 78A.
Regarding this,
Is there any delay in PCL or SOC implementation logic?
Shouldn't PCL protection turn OFF the gate pulses to MOSFET?
Your insights are welcomed and it will be helpful if you can suggest a solution for the same.
Thank you for your help