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Texas Instruments

Stellaris® Stepper Motor Module » MDL-STEPPER

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Stellaris® Stepper Motor Module - MDL-STEPPER

Not Recommended For New Designs



The Stellaris® Stepper Motor Control Module (MDL-STEPPER) is a rapid-time-to-market module solution that offers OEMs the capability of quickly adding stepper motion control capability to any application. Combining the strength and flexibility of the Stellaris microcontrollers with Fairchild Semiconductor´s gate drivers and MOSFETs creates an advanced stepper motor control solution that has been carefully engineered for performance, cost,and flexibility. Stepper motors are particularly suited for use in two- and three-axis CNC equipment, sorting and grading equipment, specialized printers and scanners, and factory automation.


The MDL-STEPPER contains the feature-rich Stellaris LM3S617 microcontroller designed for motion control applications and a Fairchild Semiconductor power stage consisting of Fairchild´s FAN73832 HVIC Driver and FDMS3672 MOSFET. The MDL-STEPPER takes advantage of the integrated features of the Stellaris microcontroller and the processing power of the ARM® Cortex™-M3 core to implement chopper control without the need for an external step controller or comparator circuits.

The MDL-STEPPER includes the following product features:

  • Software-based chopper control to operate high-torque steppers athigh step rates
  • Fast and slow decay modes
  • Full step and half step modes
  • High step rates up to 10,000 steps/sec
  • Programmable holding current
  • Virtual COM port through integrated USB
  • Support for external debugger through standard 20-pin ARM header
  • Easy power and motor connection using pluggable terminal blocks
  • Bootloader for firmware upgrades over serial port