POLOLU-2128 A4988 Stepper Motor Driver Carrier, Black Edition Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver carrier. It features a four-layer PCB for better thermal performance, allowing the A4988 microstepping bipolar stepper motor driver to deliver approximately 20% more current than our two-layer (green) version. Like our original carrier, the Black Edition offers adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions. It operates from 8 AND V to 35 AND V and can deliver up to 2 AND A per coil with sufficient additional cooling. This board ships with 0.1 AND Prime male header pins included but not soldered in. Dimensions Size 0.6 AND Prime AND times 0.8 AND Prime Weight 1.5 g1 General specifications Minimum operating voltage 8 V Maximum operating voltage 35 V Continuous current per phase 1.2 A2 Maximum current per phase 2 A3 Minimum logic voltage 3 V Maximum logic voltage 5.5 V Microstep resolutions full, 1/2, 1/4, 1/8, and 1/16 Reverse voltage protection? N Bulk packaged N Header pins soldered N4 Notes 1Without included optional headers.2Without a heat sink or forced air flow.3With sufficient additional cooling.4Male header pins are included for the boards 16 holes, but they are not installed.
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