Quality Standards and Environmental Certifications

ステッパ モーター ドライバー

静音性と効率性に優れたスムーズな動き

Allegro は、オフィス オートメーション、工業、自動車の用途に適したステッパ モーター ドライバーを豊富なラインナップでご用意しています。

独自のアルゴリズム基づく高度な技術、QuietStepTM は、トルク リップルと電流ひずみの低減により、ステッパ モーターの設計に伴う騒音・振動を最小化します。QuietStep は PWM サイクル中の高速減衰量をオンザフライで調整。電流リップルをさまざまな動作条件において低水準に維持します。この適応的な特徴により、システムのパフォーマンスを高め、可聴ノイズ・振動の低減と、ステップの正確性向上を実現します。

Featured Products

AMT49700 Package Image

AMT49700

Stepper Motor Driver IC with Single-Step Control and Adjustable Microstep Resolution for Fine Positioning and Programmable Motion Control

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A5984

DMOS Microstepping Driver with Translator and Overcurrent Protection (OCP)

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A5988

Quad DMOS Full-Bridge PWM Motor Driver

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ステッパ モーター ドライバー選択ガイド

Documentation & Resources

Technical Article

Advanced Algorithm Minimizes Stepper Motor Noise and Vibration in Precision Motion Control Applications

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.

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Application Note

Innovative Back EMF Based Stall Detection Simplifies Stepper Motor Designs

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.

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Brochure

Brochure: A Scalable Approach to Power Tool Designs

Achieve all of your design goals for voltage and power levels with a single-platform architecture by combining Allegro drivers, sensors, and regulators.

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Application Note

Improving Batwing Power Dissipation

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).

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Whitepaper

Whitepaper: Innovative FOC Motor Control: Improve Time to Market by Eliminating Software Development

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.

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Brochure

Brochure: Innovative Motor Control

With decades of experience, our embedded motion control algorithms in our motor driver ICs simplify designs while improving motor performance and time to market. Download brochure to learn more.

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Application Note

Hot-Swap Testing Results for the A5977 and A5979 Microstepping DMOS Drivers

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.

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