AMI Semiconductor Launches Stepper Motor Controller ICs with Sensorless Stall Detection

AMI Semiconductor Launches Stepper Motor Controller ICs with Sensorless Stall Detection

AMI Semiconductor has expanded its family of single-chip stepper motor driver and controller ICs with two new devices that incorporate sensorless stall detection. The new ICs will improve reliability and reduce component count, board space, cost, and development time in a wide variety of automotive and industrial motion control applications.

LIN and Serial Interface ICs improve reliability and reduce component count, cost and complexity of automotive and industrial motion control applications

The new AMIS-30623 and AMIS-30624 ICs are designed for remote and multiple axes positioning applications and offer LIN and serial (I2C) interface connectivity respectively. The integrated ‘Motion Qualification Mode’ helps application developers to select a robust set of motion parameters such as torque and acceleration-deceleration profile. As a result, noise and vibration at end-stops can be eliminated and motion control accuracy and reliability improved without the need for optical encoders, position sensors or software algorithms.

By offering a dedicated LIN interface, the AMIS-30623 will suit mechatronics solutions that are connected remotely to a LIN master. The dedicated serial interface provided with the AMIS-30624 makes this device ideal for applications in which the motor controller IC is a peripheral device located next to a host microcontroller on a single PCB. Target applications for the new devices will include headlamp leveling and swiveling, automotive HVAC designs, surveillance camera control, professional lighting equipment, industrial ‘X,Y,Z’ tables, and manufacturing robots.