LM74610-Q1 Zero IQ Smart Diode Controllers

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            LM74610-Q1 Zero IQ Smart Diode Controllers
                    Texas Instruments offers its LM74610-Q1 controller devices that replace a diode or PFET reverse polarity solution in power systems
    

Image of Texas Instruments' LM74610-Q1 Zero IQ Smart Diode Controller Texas Instruments' LM74610-Q1 are controller devices that can be used with an N-channel MOSFET in reverse polarity protection circuitry. They are 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 they are not referenced to ground and thus have Zero IQ.

The LM74610-Q1 controllers provide 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 devices' design also meets CISPR25 Class 5 EMI specifications and automotive ISO7637 transient requirements with a suitable TVS diode.

Features
Qualified for automotive applications AEC-Q100 qualified with the following results: Exceeds HBM ESD classification level 2 Device CDM ESD classification level C4B Maximum reverse voltage of 45 V No positive voltage limitation to anode terminal Charge pump gate driver for external N-channel MOSFET Lower power dissipation than Schottky diode/PFET solutions		No positive voltage limitation to anode terminal Low reverse leakage current Zero IQ Fast 2 µs response to reverse polarity -40°C to 125°C operating ambient temperature Can be used in O-Ring applications Meets CISPR25 EMI specification Meets automotive ISO7637 transient requirements with a suitable TVS diode