Pololu
A4988 Stepper Motor Driver Carrier, Black Edition
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$33.05
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The Black Edition of the A4988 stepper motor driver carrier features a four-layer PCB for better thermal performance, allowing the A4988 to deliver approxima...
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The Black Edition of the A4988 stepper motor driver carrier features a four-layer PCB for better thermal performance, allowing the A4988 to deliver approximately 20% more current than the standard two-layer (green) version. It is a drop-in replacement for the original carrier in most applications.
Key Features
- Four-Layer PCB – Approximately 20% better thermal performance than the green edition
- Five Microstep Resolutions – Full, half, quarter, eighth, and sixteenth step
- Adjustable Current Limiting – Onboard potentiometer for setting maximum output current
- Built-In Protection – Over-current, over-temperature, and short-circuit protection
- Motor Supply – 8–35 V
- Logic Supply – 3–5.5 V
- Max Current – Up to 2 A per coil (with sufficient cooling)
Also Available
Package Contents
- 1× A4988 Stepper Motor Driver Carrier, Black Edition
- 1× 0.1″ Male Header Pins (not soldered)
Jargon buster
Plain-language definitions for the technical terms used above.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
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