DQ542MA Stepper Motor Driver

DQ542MA is a type of two-phase hybrid stepping motor driverIt is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current.  The circuit that it adopts is similar to the circuit of a servo controller which enables the motor to run smoothly almost without noise and vibration!Holding torque when DQ542MA is run under high speed is also significantly higher than the other two-phase driver, what’s more, the positioning accuracy is also higher.Features:      High performance, low price      Average current control, 2-phase sinusoidal output current drive      Supply voltage from 18VDC to 50VDC      Opto-isolated signal I/O      Overvoltage, under voltage, overcorrect, phase short circuit protection      15 channels subdivision and automatic idle-current reduction      8 channels output phase current setting      Offline command input terminal      Motor torque is related with speed, but not related with step/revolutio