Features

• DC bus voltage 12-35 VDC motor supply (including

ripple)

• Switch selectable motor current from 0.4–3.5

amps/phase

• Switch selectable full or half step

• Automatic 50 idle current reduction

• Optically isolated 5 VDC inputs for step, direction

and enable

• Enable input to turn off current to the motor

• 122 watts of usable power

• Screw terminal connectors

• MOSFET, dual H-bridge, inaudible PWM amplifier

• 3 state, pulse width modulated current control,

switching at 20–30 KHz

• Drives 4, 6 or 8 lead size 11, 14, 17 or 23 step

motors

• CE compliant

Description

The 3535 step motor driver is a full or half drive,

step phase sequencer with MOSFET three state

switching amplifiers and optoisolated circuits. The

drive also includes an automatic feature to lower

motor current by 50 anytime the motor is left at

rest for more than one second.

The amplifier regulates motor current by chopping

at a constant, inaudible frequency. Phase current is

selected from 32 levels by a DIP switch. Full or half

resolution is DIP switch selected.