24V Single Phase Brushless DC Motor Driver

Data Sheet


  • Supply Voltage Range (VDD=6 to 36V)
  • Low Quiescent Current (IDD=1.7mA typ. at VDD=24V)
  • Output ON Resistance (RON(H+L)=1.0Ω typ.)
  • PWM Soft-Switching
  • Selectable PWM Control Input Direct PWM Input(5V/3.3V-IF) Mode,
    DC Voltage Input Mode
  • Duty Slope Setting and Minimum Speed Setting (at DC Voltage Input Mode)
  • Quick Start, Start up Assist
  • Lock Protection (Auto Recovery)
  • Over Current Detection
  • FG, RD Output
  • Thermal Shutdown
  • Package (SSOP16)

General Description

The NJW4321 is a single phase motor driver IC for 24V FAN Motor. It features a PWM Soft-Switching that provides low vibration and high efficiency motor driving. Built-in protection circuits: Lock Protection, Over Current Detection and Thermal Shutdown contribute to enhance safety. The speed control corresponds to two modes of Direct PWM Input and DC Voltage Input. In addition, the speed control function at the DC Voltage Input Mode is enhanced, and the Duty Slope setting and the Minimum Speed setting can be performed.

Package Information

Part NumberPackage OutlinePLPPinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
NJW4321VSSOP1616-Sn2Bi66YesYesYesNon dry pack1

Sample & Buy

Part NumberPackagesStatusPacking SpecificationSampleBuy
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