3A Tiny Unipolar Stepper Motor Driver Unit Using SLA7078 with Micro-Stepping & Current Adjust

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (1)

This tiny Unipolar stepper motor driver has been designed around SLA7078MPR IC from Sanken, It is unipolar stepper Motor driver can handle current up to 3 Amps, micro-stepping up to 1/16 steps. On-board Jumpers to set the Micro-stepping, Preset (Potentiometer) to set the current.

The SLA7070MPR series motor driver ICs features unipolar drivers. The clock-in type input interface allows simplified control logic, and options for built-in sense current detection and load circuit short or open protection (patent pending) provide lower loss, and lower thermal resistance.

The built-in excitation distribution circuit (sequencer) allows motor control using only the CLOCK signal for simple operations (rotate/stop), with motor speed control by frequency input into CLOCK pin. This eliminates logic signal lines required for conventional phase-input methods, and reduces demand on heavily-used CPUs.

Unipolar stepper board is high efficient stepper driver for Unipolar stepper motor been design for various application like robotics, control routers, lathes, mills, PCB drillers and engravers.

DOC

  • 10 Pin Header connector for signal inputs, Step, Dir., 5V, Sync, V Ref./Sleep
  • Reference Voltage VS Output Current: 0.1V to 0.45V, 0-3Amps
  • Micro-stepping via on board jumper settings
  • Micro-stepping possible : Full Step, Half Step, 1/4th Step, 1/8 Step 1/16 Step
  • Onboard preset for current adjustment
  • Supply input and stepper connection via screw terminal connector
  • Inbuilt fault protections in ic for over temp and short circuit
  • Power supply 12-42 VDC @ 3 A
  • For Normal Operation, V Ref. should be less than 1.5V, Applying a voltage greater than 2.0V ( High level) to VREF pin disables the drive and puts the motor in free state (Coast)

 

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (4)

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (3)

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (2) 3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (6)

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (7)

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (5)

3AMP UNIPOLAR STEPPER MOTOR DRIVER USING SLA7078MPR (1)

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