SLVA767A September   2016  – December 2016 SN75469 , TPL7407L , TPL9201 , ULN2003A , ULN2003B , ULN2003V12 , ULN2004A , ULQ2003A , ULQ2003A-Q1 , ULQ2004A , ULQ2004A-Q1

 

  1.   Stepper Motor Driving With Peripheral Drivers (Driver ICs)
    1.     Trademarks
    2. 1 Peripheral Driver (Driver IC) Overview
    3. 2 Stepper Motors
      1. 2.1 Unipolar Stepper Motors
      2. 2.2 Bipolar Stepper Motors
    4. 3 Stepper Motor Driving Overview
      1. 3.1 Unipolar Stepper Motor Driving Block Diagram
      2. 3.2 Detailed Design Considerations
      3. 3.3 Bipolar Stepper Motor Driving Block Diagram
      4. 3.4 Detailed Design Considerations
    5. 4 Stepper Motor Driving Patterns
      1. 4.1 Wave Drive Operation
      2. 4.2 Full-Step Operation
      3. 4.3 Half-Step Operation

3.1 Unipolar Stepper Motor Driving Block Diagram

A common application for peripheral drivers is driving unipolar stepper motors. Figure 6 shows in detail a typical block diagram for driving a unipolar stepper motor using a ULN2003A or a similar peripheral driver device such as TPL7407L.

Driver-StepperMotorDriver.gifFigure 6. Driving a Unipolar Stepper Motor