The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. The driver has a maximum output capacity of 35 V and ± 2 A. It can operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes.
Description
The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. The driver has a maximum output capacity of 35 V and ± 2 A. It can operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes.
Pinout
Pin Name | Description |
VDD & GND | Connected to 5V and GND of Controller |
VMOT & GND MOT | Used to power the motor |
1A, 1B & 2A, 2B | Output Pins, Connected to the 4 Wires of motor |
DIRECTION | Motor Direction Control pin |
STEP | Steps Control Pin |
MS1, MS2, MS3 | Microstep Selection Pins |
FAULT | Fault Detection Pin |
SLEEP | Pins For Controlling Power States |
ENABLE | Enable module to ready run motor |
RESET | Reset module |
Additional information
Color | Green, Red |
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Technical Specification
Operating Voltage | 8V to 35V |
Max Current per Phase | 2A |
Output Current | Adjustable output current via potentiometer |
Six step resolution | Full step, ½ step, ¼ step, 1/8 step, 1/16 step |
Revers Voltage Protection | No |
Protection | Short-to-ground and shorted-load protection |
Thermal Protection | Thermal shutdown circuitry |
PBC Size | 15.5 mm x 20.5 mm |
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