EMC Issue with MP28167GQ

I have EMC problems with MP28167GQ… in the datasheet are resistors mentioned in serial to the bootstrap capacitors (R6/R7 on page 30). I use 10R in a first step to decrease efficiency and to improve EMC performance. It was not successful. Can you give me some alternative combinations for resistor value and bootstrap capacitor value?

Hi Andrej,

Is it a conduction problem or radiation problem? Could you please share your EMC performance curve with me? I would like to know in which frequency range the problem lies. Thanks!

Best,
Fox

Radiation Problems peaks between 100MHz-200MHz

Hi Fox, do you any recommendations? (R6/R7)

Hi Andrej,

I will contact you in email. Thanks!

Best,
Fox