C3M0065100J Maximum VGS

JoshuaGerdes

I am planning on using the in a PFC I am designing. I am curious if I should take extra precautions regarding the maximum VGS. I am using an R15P21503D isolated supply to generate +15V/-3V for driving the gate. However, the R15P21503D output voltage tolerance isn't tight and can be up to 10% over nominal, or 16.5V. Does Wolfspeed recommend that I guarantee no greater than 15V VGS, or is 16.5V (worst case) okay? I can easily add some series diodes or a small LDO, but just don't want to if I dont need to.

SiC_Power_Admin

Hi JoshuGerdes, Thanks for posting. I would like to point you to a previous forum post that might help answer your questions.

https://forum.wolfspeed.com/discussion/209/vgs-static-vs-dynamic-limit

I will leave this post open in case you have additional questions.

JoshuaGerdes

+/-5%. Perfect. Thank you.