KStep 1.2 Hardware

Parameter	Specification
Micro Stepper Drivers
Type	Bipolar Dual Full Bridge Chopper Drivers
Number	4
Microstepping	16X
Supply Voltage	12-48VDC Common
Motor Coil Current	Jumper Programmable 8 levels (0.6 - 5A)
Max Step Rate	500KHz
Logic Inputs (Step,Dir,Enable,Relay PWM,MuxCtrl)
Voltage	3.3V LVTTL (2.4V min High 0.4V max low)
Current	16ma max
Analog
Number	1 fully Isolated
Input Supply Range	5-30V
Output Impedance	<1K ohm
Response, Tau	10ms
Inputs
Type	Opto Isolated Common Anode
Number	16
Internal Series Resistor	10K ohm
Min On Voltage	11V
Max Allowed Voltage	25V
Max Off Voltage	1.0V
Outputs
Type	Opto Isolated
Number	2
Type	Opto Isolated Darlington
Max Voltage	30V
Max Current	100ma
Voltage Clamp
Power peak	1KW
Power Average (3 sec)	10W
Levels	Jumper Programmable (13V, 25V,37V,49V)
5V Logic Supply
Voltage	+5V ± 5%
Max Current	0.05 A
3.3V Logic Supply
Voltage	+3.3V ± 5%
Max Current	0.05 A
Terminal Strips
Screw Terminals	24 Pluggable Screw Terminals (6) x 4 pin 5mm pitch
Environment
Operating Temperature	0-40º C
Storage Temperature	0-40º C
Humidity	20-90% Relative Humidity, non-condensing
Dimensions
Length	5.5 inches (140 mm)
Width	6.0 inches (151 mm)
Height	1.0 inches (24 mm)
Green
RoHS	Compliant