There are no phase sequence tables, high frequency control lines, or complex interfaces to program. Print Email a friend Feeds. Click here to buy A Stepper Driver Module. Navigation menu Personal tools Log in. In Mixed decay mode, the device is set initially to a fast decay for a proportion of the fixed off-time, then to a slow decay for the remainder of the off-time.

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We’ll notify you when there are updates to this product. This stepper motor driver lets you to operate bipolar stepper motors in full- half- quarter- eighth- allegeo sixteenth-step modes, with an output drive capacity of up to 35 V and 2 A. The A interface is an ideal fit for applications where a complex microprocessor is unavailable or is overburdened.

A4988: DMOS Microstepping Driver with Translator and Overcurrent Protection

The MP carrier can deliver up to 1. This should be done with the motor holding a fixed position i. Several alternatives are available for this product.

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Pololu – A Stepper Motor Driver Carrier

The translator dos the key to the easy implementation of the A Shop Blog Forum Support. Products New Products Specials! Privacy policy About Geeetech Wiki Disclaimers. The driver requires a logic supply voltage 3 — 5.


A4988 Stepper Motor Driver Carrier

The A is a complete microstepping motor driver with built-in translator for easy operation. The driver requires a logic supply voltage 3 — 5. Navigation menu Personal tools Log in.

This page was last modified on 2 Augustat Internal circuit protection includes: Step and microstep size Stepper motors typically have a step size specification e. The following picture shows how to identify which current sense resistors your board has:.

Please note that measuring the current draw at the power supply will generally not provide an accurate measure alleyro the coil current.

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A version of this board with headers already installed is also available. Click the image to view larger. You can also solder your motor leads and other connections directly to the board. The alleegro limit, I MAXrelates to the reference voltage as follows:. Free add-on shipping in USA.

Allegro MicroSystems – A DMOS Microstepping Driver with Translator and Overcurrent Protection

This product ships with all surface-mount components—including the A driver IC—installed as shown in the product picture. A microstepping driver such as the A allows higher resolutions by allowing intermediate step locations, which are achieved by energizing the coils with intermediate current levels.


Alternatives available with variations in these parameter s: Note that we carry several stepper motor drivers that can be used as alternatives for this module and drop-in replacements in many applications:. Print Email a friend Feeds. Links Forum Bazzar Blog Contact us. Also, note that you will need to perform this adjustment again if you ever change the logic voltage, Vdd, since the reference voltage that sets the current limit is a function of Vdd. For customers interested in higher volumes at lower unit costs, we offer a bulk-packaged version without header pins and a bulk-packaged version with header pins installed.