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LTC4353 Permits reverse current

Question asked by Raj_vasanth on Aug 7, 2018
Latest reply on Aug 15, 2018 by Raj_vasanth


We are using a circuit where it gets Power from two supplies and have implemented LTC4353 for reverse current protection. Such that one of the Source(Battery) does not get loaded.

We found issues that the mosfet M1 and M2 ( We used different mosfets instead of Si4126DY used in datasheet ) both are getting Switched ON at some conditions when Only ONE power supply is present allowing for reverse current. 

Please find the attachment of How it is working for us.


LTC4353 Circuit also allows Current sharing when both Supply's difference vary in mv considering that the 

Mosfet has Body diode. But this is okay for us.

please provide us solution.