Allegro MicroSystems, LLC A PMIC – Motor Drivers, Controllers parts available at DigiKey. The EasyDriver is a simple to use stepper motor driver based on an Allegro A chip. It is compatible with anything that can output a digital 0. Microstepping Driver with Translator. A 2. Allegro MicroSystems, Inc. Northeast Cutoff. Worcester, Massachusetts U.S.A.. .

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This one is complicated – please see the datasheet for more information. They will not have as much torque as bipolar motors due to thinner wire with a higher electrical resistance used in the coils bifilar windings. This EasyDriver has been co-designed with Brian Schmalz. There are no news items available for this product. They require a dual H-bridge to drive them. The EasyDriver has an on board voltage regulator for the digital interface that can be set allehro 5V or 3.

The ASLB is a complete microstepping motor driver with built-in translator. If aallegro is not your local representative, find your local sales rep here. Affichages Lire Voir le texte source Historique.

This current-decay control scheme results in reduced audible qllegro noise, increased step accuracy, and reduced power dissipation. Espaces de noms Page Discussion. This should be a 6V to 30V, 2A or more power supply that is clean low ripple.


Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout UVLO and crossover-current protection. This will cause permanent damage to the A chip. The sleep and enable pins are also broken out for further control. Special power-up sequencing is not required. You can also connect 5,6 or 8 wire unipolar motors and connect them as bipolar motors by not connecting the common lead s.

They are all connected together alelgro the board. Menu de navigation Outils personnels Se connecter.

Allegro MicroSystems – A Microstepping Driver with Translator

EasyDriver drives bi-polar motors, and motors wired as bi-polar i. This normally high input signal will reset the internal translator and disable all output drivers when pulled low. We default it to slow decay mode, but you can override with your own allegrp on this pin. It is compatible with anything that can output a digital 0 to 5V pulse or 0 to 3.

The microstep select MS1 and MS2 pins of the A are broken out allowing adjustments to the microstepping resolution.

Arduino + Stepper (A3967) EasyStepper

Flyback diodes are required to prevent voltage spikes when the power to the coil is turned off and the stepper motor acts like a generator briefly back-emf.

Click the image to view larger. Bipolar stepper motors always have only 4 wires. Bipolar motors offer increased torque compared to unipolar motors.

Ce site contient essentiellement des notes de travail. Connect the negative side of your power supply, as well as from any other boards you are using to drive the Easy Driver to one or more of the GND pins.


Bipolar stepper, requires 2 full H-bridges! By simply inputting one pulse on the STEP input the motor will take one step full, half, quarter, or eighth depending on two logic inputs. A and B are the two coils of the motor, and can swap the two wires for a given coil it will just reverse the direction of the motor.

This normally high input signal will minimize power consumption by disabling internal circuitry and the output drivers when pulled low. The EasyDriver requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor. This needs to be a 0V to 5V or 0V to 3. We’ll notify you when there are updates to this product. Connect this to the positive power supply lead. Each rising edge of this signal will cause one step or microstep to be taken.

The ASLB includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed current-decay modes. See below diagrams for how to hook these up.