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LM74703QDDFRQ1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM74703QDDFRQ1 product

LM74703QDDFRQ1

Power Management (PMIC)

AEC-Q100ideal diode controllerreverse polarity protectionactive ORingexternal N-channel MOSFETpush-pull FETGOODSOT-23-THIN

LM74703QDDFRQ1 is a TI automotive ideal-diode controller for driving an external N-channel MOSFET with low forward loss and fast reverse-current blocking.

Best for

  • Automotive reverse-battery protection
  • Low-loss power-path ORing with an external N-channel MOSFET

Avoid if

  • A discrete-only reverse-polarity solution is required
  • The system requires an open-drain FET status output without interface changes

Check before use

  • Confirm external MOSFET VGS rating is at least 15 V or add a VGS clamp.
  • Size the VCAP capacitor at 0.1 µF minimum and consider MOSFET input capacitance.
  • Validate TVS selection and MOSFET voltage rating for expected automotive transient pulses.

Key specifications

Input voltage
3.2 V to 65 V
Forward regulation
20 mV typical
Reverse blocking delay
0.75 µs maximum
FETGOOD output
Push-pull

Compliance & Environment

RoHS
Yes
REACH
-
MSL
MSL 1, 260 °C peak reflow
ECCN
-
HTSUS
-

Application

Automotive power protectionActive ORing power pathsADAS and infotainment electronics

Datasheet

sffs900

800 KB

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CAD Models

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Alternative components

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Questions & answers

LM74703QDDFRQ1 is the orderable TI LM74703-Q1, an AEC-Q100 automotive ideal-diode controller in an 8-pin SOT-23-THIN DDF package. It drives an external N-channel MOSFET for low-loss reverse-polarity protection or active ORing.