MC33908 reverse polarity

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MC33908 reverse polarity

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anzicek
Contributor I

     #MC33908 - Hello, I am curious what continuous reverse polarity the MC33908 #Vsense pin can withstand.  My implementation includes the external 5.1kOhm resistor, but the maximum ratings only show -14.0V as the max rating, no clamping voltage or current that the pin can withstand.  If a current were provided I could calculate.  There are also resistive dividers internal to the MC33908 on the Vsense pin, but the values of these are not given, again with the values of these, the -14V could be extrapolated to the input voltage with the 5.1k resistor.

Any help you can provide would be appreciated,

Thanks,

Josh

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guoweisun
NXP TechSupport
NXP TechSupport

Hi Joshua

Please note that VSENSE maximum current capability -5mA to 5mA.

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anzicek
Contributor I

Sorry I don't know why this just posted to QorIQ platforms.... not sure how to move it.

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