MC425 driver use the 32-bit DSP technology, suitable for driving 35,39,42 series motor, with excellent low-speed. Can be set within any of the 64 within the rated current and any current value, to meet the requirements of most small devices. low-speed operation is very smooth, very little noise. Can drive 4-wire, 8-wire two-phase stepper motor; voltage input range: 18V ~ 36VDC, current maximum 2.5A, resolution 0.1A, subdivision range: 400 ~ 6400ppr; signal input: single-ended, pulse / Built-in fine subdivision; anti-interference ability; with over-voltage, over-current protection, small size.