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
Hi Fox, do you any recommendations? (R6/R7)
Hi Andrej,
I will contact you in email. Thanks!
Best,
Fox
just wondering if you can share the solution here? In general terms, does not have to exact solution. Thank you!
Hi Leonard,
Sure, no problem. For the radiation EMI testing, if it is out of spec, we will try to add a 10nF Cout first. And we can also add a 2ohms resistor in series with VCC cap. For R6/R7, an 1ohm or a 2.2ohms resistor should be good.
If you have any other questions, feel free to ask me.
Best,
Fox
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