A4988 Stepper Driver 2A

Description
A4988 Stepper Motor Driver – 2A
Max. Operating Voltage: 35V
Min. Operating Voltage: 8V
Max. Current Per Phase: 2A
Microstep resolution: Full step, ½ step, ¼ step, 1/8 and 1/16 step
Reverse voltage protection: No
Dimensions: 15.5 × 20.5 mm (0.6″ × 0.8″)
Short-to-ground and shorted-load protection
Low RDS(ON) outputs
Thermal shutdown circuitry
Pin Configuration

Pin Name Description
VDD & GND Connected to 5V and GND of Controller
VMOT & GND Used to power the motor
1A, 1B, 2A, 2B Connected to the 4 coils of motor
DIRECTION Motor Direction Control pin
STEP Steps Control Pin
MS1, MS2, MS3 Microstep Selection Pins
SLEEP
Pins For Controlling Power States

RESET
ENABLE
Specifications:

Motor output voltage 8V – 35V
Logic input voltage 3V – 5.5V
Continuous current per phase 1A
Maximum current per phase 2A
Microstep resolution full, 1/2, 1/4, 1/8 and 1/16