DR3535tm Stepper Motor Driver
Full & Half Step, 40V 3.5A



  • DIP switch selectable current from 32 levels
  • Selectable full-step or half-step operation
  • Uses bipolar chopper circuit to provide the highest performance
  • Thermal protection
  • Screw terminal connectors
  • Optoisolated inputs
  • Available with on-board oscillator (DR3535-O)
DR3535 Photo

The DR3535 is a high current stepper motor driver. It receives step and direction signals from the controller and can drive motors with up to 40 volts to maximize the high speed performance. The DR3535 can be used in conjunction with our OptiStep Plus, MN100 or MN400 motion controllers or with any controller capable of producing TTL compatible step and direction signals.


Drive circuit

Constant current bipolar chopper

Chopping rate

20 KHz nominal

Operating voltage range

12 ~ 40 VDC

Output Current

0.4 - 3.5 Amps in 0.1 A increments

Stepping Modes

Half / Full step selectable

Current cutback

Automatic after one second of idle

Step input signal

TTL compatible positive edge trigger

Direction input signal

TTL compatible positive edge trigger

Fault and Home output signals

Open collector type (50 mA max sink)

Motor control outputs

4 current mode chopper lines per axis

Current capability

3.5 amps per phase continuous

Physical dimensions

4.00" × 3.00" × 1.50"

Working temperature range

32° F ~ 158° F (0° C ~ 70° C)


One year parts and labor

DR3535 Block Diagram


DR3535 Typical Application


DR3535-O Typical Application


DR3535 Mechanical Outline