Dual H-Bridge Driver for Actuator

Data Sheet


  • Supply Voltage (VMM=8.0 to 36V)
  • Output Current (
    Io=700mA (DC)
    Io=1500mA (Peak))
  • Low ON Resistance Output (RO(H+L)=0.6ohm typ.)
  • Low Quiescent Current (2.5mA typ.)
  • Input Control Mode Select Function(
    2 Logic Inputs Control (2IN Input Mode)
    Phase & Enable Inputs Control (PHASE Input Mode)
  • TTL Compatible Input
  • Standby Function
  • Constant Current Control Circuit
  • PWM Control (
    Analog Control: DC Voltage Input (VPWM=1.0 to 3.0V, fOSC= to 150kHz)
    Digital Control: Direct PWM Input (fPWM= to 150kHz))
  • Protection Circuit (OCP, UVLO, TSD)
  • Alarm Output Function (At operation of OCP or TSD protection circuit)
  • Package Outline (SSOP32)

General Description

The NJW4381 is a dual H-bridge driver IC that has general versatility for various actuators. The mode select function on the control part can select two types of input control, “2 Logic Inputs” or “Phase & Enable”. Input part has schmitt inverter circuit with high margin to noise. Output part has two circuit configurations of independent H-bridge. The protection circuits are Under Voltage Lockout (UVLO), Thermal Shutdown (TSD) and Over Current Protection (OCP). Moreover, if TSD or OCP error is detected, alarm is output. The power supply and interface voltages correspond to mixed logic circuits such as 5.0V and 3.3V. The NJW4381 has characteristics such as low quiescent current, high output current, 40V tolerance and low ON resistance output. Therefore, it is suitable for various actuators, such as step motor, DC motor, and solenoid.

Package Information

Part Number Package Outline PLP Pins Terminal Finish Weight(mg) (Reference) Reflow soldering Flow soldering Iron soldering Packing Condition MSL Solder Foot Print
NJW4381V SSOP32 - 32 Sn2Bi 185 Yes - Yes Dry pack 1 2a

Sample & Buy

Part Number Packages Status Packing Specification Sample Buy
NJW4381V SSOP32 (Active) Contact Us Sales Support