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Commun mode of the ADUM7223

Question asked by albertini on Apr 16, 2015
Latest reply on Apr 17, 2015 by RSchnell

Hello,

 

1) Actually I design a buck converter and I drive my NMOS by the ADUM7223. I would like to switch 100V in 1ns (100KV/µS) but in the datasheet of the ADUM7223 the common mode transient static is 50KV/µS but this value it specified at 700V. what is the max common mode transient static at 100V.

 

2) If i include a short delay in my input (VIA or VIB), this case is considered static or dynamic (what is the limit of the common mode ?).

 

3) I have another buck but it is negative and I switch -100V in 1ns, what is the limit of the common mode in this case.

 

Thank you

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