A4988 Stepper Motor Driver Carrier with Voltage Regulators

A4988 Stepper Motor Driver Carrier with Voltage Regulators
Pololu item #: 1183 149 in stock

Price break Unit price (US$)
1 9.95
10 8.95
100 7.95


backorders allowed

This is a breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver. It has two voltage regulators (5 V and 3.3 V), eliminating the need for separate logic and motor supplies. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). It operates from 8 – 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). This board ships with 0.1″ male header pins included but not soldered in.

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Dimensions

Size: 0.7″ × 1.4″
Weight: 3.3 g1

General specifications

Minimum operating voltage: 8 V
Maximum operating voltage: 35 V
Continuous current per phase: 1 A2
Maximum current per phase: 2 A3
Minimum logic voltage: 3 V4
Maximum logic voltage: 5.5 V4
Microstep resolutions: full, 1/2, 1/4, 1/8, and 1/16
Reverse voltage protection?: Y5

Notes:

1
Without included optional headers.
2
Without a heat sink or forced air flow.
3
With sufficient additional cooling.
4
Logic voltage can optionally be supplied from integrated voltage regulators.
5
On motor supply voltage (VMOT) only.