... 8A adjustable output current, 1to16 MicrosteppingDual H-bridge with PWM constant current control,Enable/shutdown controllableOpto-isolated inputs with ... Current: Max 2A/4A/8A (1)Current Control: Constant, PWM controlMicrostepping: Full-, Half-, Quarter- and 16th-step (2) ... self-pulsing stepper controller are available. Parallel port PWM chopper constant current two-phase hybrid stepper motor driver ...