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 will cause permanent damage to the A chip. This normally high input signal will minimize power consumption by disabling internal circuitry and the output drivers when pulled low. Espaces de noms Page Discussion. Click the image to view larger.

The EasyDriver is a simple to use stepper motor driver based on an Allegro A chip. The microstep select MS1 and MS2 pins of the A are broken out allowing adjustments to the microstepping resolution. Affichages Lire Voir le texte source Historique. This one is complicated – please see the datasheet for more information. See below diagrams for how to hook these up.

MAS – Portfolio – Dan Sawada

You can also connect 5,6 or 8 wire unipolar motors and connect them as bipolar motors by not connecting the common lead s. M odifying a 5V 28byj step motor from unipolar to bipolar. Special power-up sequencing is not required. The EasyDriver requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor.

Ce site contient essentiellement des notes de travail. Menu de navigation Outils personnels Se connecter. Do not connect or disconnect a motor while the driver is energized.


Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout UVLO and crossover-current protection. This normally high input signal will reset the internal translator and disable all output drivers when pulled low. Bipolar motors offer increased torque compared to unipolar motors.

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 allsgro.

The sleep and enable pins are also broken out for further control. Connect this to the positive power supply lead. We’ll notify you when there are updates to this product.

A3967: Microstepping Driver with Translator

The translator is the key to the easy implementation of the ASLB. This current-decay control scheme results in reduced audible motor allegr, increased step accuracy, and reduced power dissipation.

The EasyDriver has an on board voltage regulator for the digital interface that can be set to 5V or 3. We default it to slow decay mode, but you can override with your own voltage on this pin. EasyDriver drives bi-polar motors, and motors wired as bi-polar i. 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.

Each rising edge of this signal will cause one step or microstep to be taken. The tabs are at ground potential and need no insulation. This EasyDriver has been co-designed with Brian Schmalz. This is the power input to the Easy Driver.


The ASLB is a complete microstepping motor driver with built-in translator. 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. If this is not your local representative, find your local sales rep here. This should be a 6V to 30V, 2A or more power supply that is clean low ripple. There are no phase-sequence tables, high-frequency control lines, or complex interfaces to program.

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.

The ASLB includes a fixed off-time current regulator that has alleggo ability to operate in slow, fast, or mixed current-decay modes. There are no news items available for this product. Bipolar stepper qllegro always have only 4 wires.

Allegro MicroSystems – A Microstepping Driver with Translator

They are all connected together inside the board. This needs to be a 0V to 5V or 0V to 3.

Bipolar stepper, requires 2 full H-bridges! They require a dual H-bridge to drive them.