NJW4381 Series
Dual H-Bridge Driver for Actuator

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ECAD Model: Learn more
  • Standard
  • For Automotive
  • Product Longevity Program
  • RoHS
Package1
Package1

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.

Spec

Standard Automotive
Motor Voltage 8V to 36V
Absolute Maximum Rating 40V
Output Current Max. 1.5A
Number of Motors 1
Operating Current Typ. 2.5mA
Structure Bi-CMOS Technology
Wide Operating Temperature -40℃ to +85℃ -40℃ to +105℃
Junction Temp. +150℃
Package SSOP32
Low ON Resistance Output RO(H+L)=0.6ohm typ.
Input Control Mode Select Function 2 Logic Inputs Control (2IN Input Mode)
Phase & Enable Inputs Control (PHASE Input Mode)
PWM Control Analog Control: DC Voltage Input (VPWM=1.0 to 3.0V, fSAWOSC= to 150kHz)
Digital Control: Direct PWM Input (fVPWM= to 150kHz)
Note TTL Compatible Input
Standby Function
Constant Current Control Circuit
Protection Circuit (OCP, UVLO, TSD)
Alarm Output Function (At operation of OCP or TSD protection circuit)

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