UCC21530: Miller clamp circuit for SiC Mosfets

franziskus

Expert 8249 points

Part Number: UCC21530

Tool/software:

Hi,

is there any discrete means to implement a miller clamp while using SiC Mosfets?

Best regards

over 1 year ago

0 Will Appelt over 1 year ago

TI__Intellectual 1545 points

Hi,

Here is an FAQ page that can provide some helpful information for your question: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1059770/faq-ucc21520-how-can-i-prevent-false-turn-on-of-the-power-fet-during-powerup?tisearch=e2e-sitesearch&keymatch=UCC21520#

Some comments on the FAQ: In the simulation schematic, there should be a resistor at the base of the BJT. You can adjust the capacitor C5 to adjust your timing as well.

Best regards,

Will

Power management

Power management forum

UCC21530: Miller clamp circuit for SiC Mosfets