I am designing a SMPS from TI http://www.ti.com/lit/df/tidrgc2/tidrgc2.pdf
We replaced the Mosfet fro schematic with STL11N65M5 that has a Coss of 18pf
So I am designing a RC snubber across it and I calculated at about 47pf (and use R of 50R). The overshoot and damping is not optimized.
So I am trying to increase the C to 330pf (with a 50R) but my Mosfet blows up. How to calculate the maximum capacitance of RC snubber that Mosfet can whitstand ? Is it in relation to C and R ?
(we already removed the ferrite beads question)