Low cost microstep drive IC for bipolar stepper motor

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The low-priced stepper motor positioning control to 2.5 A is a microstep PWM constant current IC for power and logic. It is small and requires only few external components and can be deployed without a heatsink due to its low RDSON to more than 1 A. The A3979 chip from Allegro is deployed in high numbers and, in addition to the technical support and the Evaluation Board SMC11, customers also benefit from our favorable distributor prices.

Advantages

• for a stepper motor to 2.5 A/phase and max. 35 V
  Enables high space and cost savings with a maximum of function and a minimum of external structural elements
• Microstep changeover
  in 1/1, 1/2, 1/4, 1/8, (1/16*) steps provides quiet, uniform running and reduces system resonances
• low R_DSON = 0.22 Ohm
  significantly reduces losses
• High operational reliability
  through integrated overcurrent protection, undervoltage detection and crossover current protection
• Low motor noise
  Automatic decay switching (slow, mixed and fast) reduces the power loss and decreases the motor noise and power loss

Price example

For high numbers we can offer the IMT903 for less than 3€! Please contact us! sales@nanotec.de