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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 ControllerTexas 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

LM74610-Q1 Zero IQ Smart Diode Controllers

ImageManufacturer Part NumberDescriptionTypeFET TypeAvailable QuantityView Details
IC SMART DIODE CTLR 8VSSOPLM74610QDGKRQ1IC SMART DIODE CTLR 8VSSOPN+1 ORing ControllerN-Channel53211 - Immediate
10001 - Factory Stock
View Details
IC SMART DIODE CTLR 8VSSOPLM74610QDGKTQ1IC SMART DIODE CTLR 8VSSOPN+1 ORing ControllerN-Channel1117 - Immediate
10001 - Factory Stock
View Details

Eval Modules

ImageManufacturer Part NumberDescriptionTypeEmbeddedAvailable QuantityView Details
SMART DIODE CONTROLLER EVAL MODULM74610-SQEVMSMART DIODE CONTROLLER EVAL MODUPower Management-9 - Immediate
3 - Factory Stock
View Details
SMART DIODE CONTROLLER ORING EVALM74610-DQEVMSMART DIODE CONTROLLER ORING EVAPower Management-5 - Immediate
90 - Factory Stock
View Details
Published: 2015-12-14