1)stepping motor driver 2)Low noise 2-phase stepping Driver; 3)input:20--40v, 4)output:1.0--4.2A; 5)Microstep:4--256;10--250 Description of stepping motor driverPSD5042-2P/2-phase stepping driver Key Features: 20 to 50VDC Supply Voltage H-Bridge, 2 Phase Bi-polar Micro-stepping Drive Suitable for 2-phase, 4, 6 and 8 leads step motors, with Nema size 16 to 34 Output current selectable from 1.0 ~ 4 ...