EZ6609 V1.0 Stepper driver

A sensorless load measurement for stepper motors, StallGuard gives cost-effective feedback on the load-angle. The StallGuard sensitivity can be adjusted to fit the applications need, making it ideal for sensorless homing, self-calibration, distance measurement, or to verify all mechanics still function within the safety margins. Implemented in a standard stepper motor driver, the sensorless load detection eliminates the need for reference or limit switches and reduces cost and complexity of applications where precise referencing is required.

Normally, open-loop stepper drives lose step count in overload situations as they stall, for example when an axis is obstructed. StallGuard technology prevents step loss, keeping step count integrity by stopping the motor when the set load-value is reached. The sensorless technology can detect up to 1024 different load-levels, allowing for high-resolution feedback for continuous monitoring of the system.