Minimize noise and vibration in your stepper motor designs with our QuietStepTM adaptive stepper motor drivers. We offer a complete lineup of stepper motor drivers for office automation, industrial, and automotive applications. Our advanced QuietStepTM solutions use proprietary algorithms to reduce torque ripple and current distortion. To minimize ripple current for the various operating conditions, QuietStepTM adaptive stepper motor drivers perform on-the-fly adjustments to the amount of fast decay during a pulse-width modulation (PWM) cycle. This adaptive feature improves system performance, reduces audible motor noise and vibration, and increases step accuracy.
Stepper Motor Driver IC with Single-Step Control and Adjustable Microstep Resolution for Fine Positioning and Programmable Motion Control
April 26, 2021
Stepper motors offer unique advantages over direct current (DC) and brushless DC (BLDC) motors in many applications. A bipolar stepper provides accurate open-loop position as well as zero-speed torque without using a control loop or external sensors.Learn More
Many applications require reliable detection of reaching a mechanical endpoint without using an external sensor, and motor stall detection can be used instead. This article describes an innovative method of small stepper motor stall detection and its application.Learn More
This paper will focus on the basics of the sensorless control algorithm, the advantages of different sensing techniques, and how the GUI can drive a full-featured sensorless sinusoidal BLDC motor with no software programming required.Learn More
AN295015 - Allegro MicroSystems’ stepper motor ICs are power ICs encapsulated in DIP (dual in-line), SOIC (small outline integrated circuit), and PLCC (plastic leaded chip carrier) packages. The silicon die is directly bonded to a heat-spreading lead frame (batwing).Learn More
This report outlines hot-swap test results for A5977 and A5979 stepper motor drivers. To duplicate the hot-swap conditions, we have selected an IC motor supply voltage (VBB) of 24 V and motor current of 1.5 A per winding for our tests.Learn More