J
Jamie Morken
- Jan 1, 1970
- 0
Hi,
What determines a fet's ie. 650V n channel like this one:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=IPP60R099CPIN-ND
rise and fall times?
I usually look at total gate charge to find fet driver current
requirements for switching losses, and Rds(on) for on-time power losses,
but haven't figured out the relationship between rise/fall times and
these or other parameters.
I think rise and fall times must be proportional to the total gate
charge and the gate drive currents, but it seems that maybe some
fets have a minimum rise/fall time independent of the gate drive
currents maybe.
cheers,
Jamie
What determines a fet's ie. 650V n channel like this one:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=IPP60R099CPIN-ND
rise and fall times?
I usually look at total gate charge to find fet driver current
requirements for switching losses, and Rds(on) for on-time power losses,
but haven't figured out the relationship between rise/fall times and
these or other parameters.
I think rise and fall times must be proportional to the total gate
charge and the gate drive currents, but it seems that maybe some
fets have a minimum rise/fall time independent of the gate drive
currents maybe.
cheers,
Jamie