The LM74610-Q1 is a controller device that can be used with an N-Channel MOSFET in a
reverse polarity protection circuitry. It is designed to drive an external MOSFET to emulate an
ideal diode rectifier when connected in series with a power source. A unique advantage of this
scheme is that it is not referenced to ground and thus has Zero Iq.
The LM74610-Q1 controller provides a gate drive for an external N-Channel MOSFET and a
fast response internal comparator to discharge the MOSFET Gate in the event of reverse polarity.
This fast pull-down feature limits the amount and duration of reverse current flow if opposite
polarity is sensed. The device design also meets CISPR25 Class 5 EMI specifications and automotive
ISO7637 transient requirements with a suitable TVS diode.
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