I want use INA241A in my stored energy system. But VCM may drop from 12V to -10V immediately in safety test.
What is the output status when VCM is out of Operational voltage but in Survival voltage?
Thanks.
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I want use INA241A in my stored energy system. But VCM may drop from 12V to -10V immediately in safety test.
What is the output status when VCM is out of Operational voltage but in Survival voltage?
Thanks.
Hello valued engineer,
I am looking into this and will respond shortly.
Sincerely,
Peter
Hello again,
As Vcm goes below -5V, this will begin to gradually cease operation (reduced gain, reduced CMR, increased offset) of the first internal stage and once Vcm gets closer to -20V, Vout will just track Vref with no differential gain. This should not be a problem if you are not trying to accurately sense current during this safety test.
Overall, it is generally hard to predict where Vout will go for -5V<Vcm<-20V range.
If you have more questions, please post back.
Sincerely,
Peter