text.skipToContent text.skipToNavigation


Zero iq reverse polarity protection smart diode controller

Availability: 2,118


Package | PIN: VSSOP (DGK) | 8
Temp: Q (-40 to 125)
Package qty | Carrier: 250 | SMALL T&R
Qty Price
1-99 $1.80
100-249 $1.58
250-999 $1.11
1,000+ $0.89


  • 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
  • Lower Power Dissipation than Schottky
    Diode/PFET Solutions
  • 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 OR-ing Applications
  • Meets CISPR25 EMI Specification
  • Meets Automotive ISO7637 Transient
    Requirements with a Suitable TVS Diode
  • No Peak Current Limit

Texas Instruments  LM74610QDGKTQ1

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.