Allegro MicroSystems Inc. Datasheets for Stepper Motor Drives

Stepper motor drives power unipolar and bipolar stepper motors in full step, half step, and microstep motion control applications.
Stepper Motor Drives: Learn more

Product Name Notes
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Dual 1.5 Full Bridge Motor Driver
Serving as a replacement for the AMT49702 Quad DMOS Full-Bridge PWM Motor Driver. The A4992 simplifies stepper motor control with integrated phase current control, a built-in translator for easy microstepping,...
Serving as a replacement part for the AMT49701 Quad DMOS Full-Bridge PWM Motor Driver. The A5988 offers versatile and efficient control of up to two stepper motors or four DC...
Simplify stepper motor control with the A5976. The integrated translator eliminates complex microstepping programming, while selectable current decay modes and synchronous rectification ensure quiet and efficient operation. * Note: If...
Stepper Motor Drivers
The A3901 efficiently drives two DC motors or a single stepper motor with its dual full-bridge design. Optimized for low voltage drop and power consumption, it supports currents up to...
The A3906 provides versatile and efficient control of stepper and DC motors, featuring integrated PWM current control, synchronous rectification for reduced power dissipation, and an overcurrent flag for enhanced system...
The A3909 offers a versatile solution for driving two DC motors or a single stepper motor, with independent full-bridge control for each. Supports a wide power supply range (4V-18V) and...
The A3916 offers efficient and versatile control of stepper and DC motors, with dual full-bridge DMOS drivers, synchronous rectification for reduced power dissipation, and integrated PWM current control. * Note:...
The A3966 simplifies the control of two-phase bipolar stepper motors with its dual full-bridge design, integrated PWM current control, and optimized low saturation voltage outputs for reduced power dissipation. *...
The A3967 simplifies stepper motor control. Its integrated translator eliminates complex programming, while automatic current decay selection and synchronous rectification ensure quiet and efficient operation in full-, half-, quarter-, and...
The A3977 simplifies microstepping motor control with its integrated translator, eliminating the need for complex phase-sequence tables. Offers smooth, quiet operation with selectable current decay modes and synchronous rectification. *...
The A3979 offers precise and versatile microstepping control for bipolar stepper motors, featuring 1/16-step resolution, an integrated translator for simplified control, and selectable current decay modes for optimized performance. *...
The A3981 provides highly configurable and reliable stepper motor control for automotive applications. Features SPI control, programmable current regulation, and diagnostic capabilities for enhanced system performance. * Note: If you...
The A3983 simplifies microstepping motor control with its integrated translator, automatic current decay selection, and synchronous rectification, ensuring quiet and efficient operation. * Note: If you have issues logging into...
The A3984 offers precise and efficient microstepping control of bipolar stepper motors, featuring 1/16-step resolution, an integrated translator for simplified control, and synchronous rectification for reduced power dissipation. * Note:...
The A3985 offers a highly configurable solution for driving stepper and BLDC motors, featuring dual full-bridge gate drive, programmable PWM control, synchronous rectification, and integrated protection. * Note: If you...
The A3992 provides precise and efficient microstepping control of bipolar stepper motors, with programmable current control, synchronous rectification for reduced power dissipation, and integrated protection features. * Note: If you...
The A4970 efficiently drives bipolar stepper motors or two DC motors, with integrated PWM current control, internal clamp diodes, and thermal protection. * Note: If you have issues logging into...
The A4975 offers precise microstepping control of bipolar stepper motors, with selectable decay modes (slow, fast, mixed), an integrated DAC for current control, and internal protection features. * Note: If...
The A4979 is a highly configurable stepper motor driver with integrated microstepping, stall detection, and short circuit protection. * Note: If you have issues logging into this feature you may...
The A4980 offers a flexible and programmable solution for automotive stepper motor control, featuring SPI control, programmable current regulation, and diagnostic read-back. * Note: If you have issues logging into...
The A4982 simplifies microstepping motor control with its integrated translator, automatic current decay mode selection, and integrated protection features. * Note: If you have issues logging into this feature you...
The A4983 provides a highly integrated solution for microstepping motor control, featuring a built-in translator, 1/16th step resolution, automatic current decay selection, and synchronous rectification. * Note: If you have...
The A4984 simplifies microstepping motor control with its integrated translator and selectable step modes, offering automatic current decay selection and synchronous rectification for optimized performance. * Note: If you have...
The A4985 offers precise and versatile microstepping motor control with an integrated translator, automatic current decay mode selection, and integrated current control for simplified design and optimized performance. * Note:...
The A4986 offers efficient and reliable control of stepper motors with its dual full-bridge design, parallel input communication, and integrated overcurrent protection. * Note: If you have issues logging into...
The A4987 efficiently drives two stepper motors with its dual full-bridge design, parallel input communication, and integrated overcurrent protection. * Note: If you have issues logging into this feature you...
The A4988 offers precise and versatile microstepping motor control, featuring a built-in translator, 1/16th step resolution, automatic current decay selection, and synchronous rectification. * Note: If you have issues logging...
The A4989 provides a complete solution for driving high-power stepper motors, with integrated microstepping translation, sinusoidal DAC current reference, and synchronous rectification for efficient and quiet operation. * Note: If...
The A4990 provides versatile motor control for automotive applications, driving stepper or brush DC motors with full current and offering brake capability. * Note: If you have issues logging into...
The A4993 offers flexible and precise control of bipolar stepper motors, with integrated phase current control, a built-in translator for easy microstepping, and SPI control for advanced configuration and diagnostics.
The A5977 simplifies microstepping motor control with its integrated translator and support for up to 1/8-step resolution. Offers smooth, quiet operation with selectable current decay modes. * Note: If you...
The A5979 provides precise and efficient microstepping control for bipolar stepper motors, with an integrated translator for simplified control and selectable current decay modes for optimized performance. Supports up to...
The A5984 offers quiet and precise control of stepper motors, featuring adaptive current control to minimize noise and vibration, along with an integrated translator and selectable step modes for simplified...
The A5985 provides quiet and precise control of stepper motors with output current up to 1A per phase, featuring adaptive current control to minimize noise and vibration, an integrated translator,...
The A5989 provides a highly integrated solution for driving both a bipolar stepper motor and a high-current DC motor, with independent control for each and integrated protection features. * Note:...
The AMT49700 simplifies complex stepper motor control with its programmable motion profiles, integrated current sensing, and microstepping capabilities, reducing microprocessor overhead and external component count. * Note: If you have...