A4988 Driver for Stepper Motor

A4988 Driver for Stepper Motor

The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate.

• Stepper motors are widely used in various applications that require precise control over motion.
• To effectively drive a stepper motor, a motor driver is essential. One popular choice among hobbyists and professionals alike is the A4988 driver.

What is an A4988 Driver?

• The A4988 driver is a versatile and cost-effective motor driver specifically designed for driving bipolar stepper motors.
• It provides microstepping capability, allowing for smoother and more precise motor movements.
• The driver is compatible with a wide range of microcontrollers and can handle a maximum current of 2A per coil.

Key Features of the A4988 Driver:

• Microstepping capability: The A4988 supports full-step, half-step, quarter-step, eighth-step, and sixteenth-step modes, providing finer control over motor movements.
• Adjustable current limiting: The driver allows for adjustable current limiting to protect the motor from overheating and damage.
• Simple control interface: The driver can be controlled using simple step and direction signals, making it easy to integrate into various projects.
• Thermal shutdown protection: The driver includes built-in thermal shutdown circuitry to prevent overheating.

How to Use the A4988 Driver:

• Using the A4988 Stepper driver is relatively straightforward.
• It requires connecting the driver to the stepper motor and providing the necessary control signals.
• The driver can be powered using a separate power supply or from the microcontroller itself, depending on the motor’s voltage requirements.
• When connecting the driver, it is crucial to follow the correct wiring diagram and ensure proper polarity.
• Additionally, adjusting the current limit on the driver is essential to prevent motor overheating.

A4988 driver Features:

• Low RDS (On) Output
• Automatic current decay mode detection / selection
• Mix with slow current decay modes
• Synchronous rectification for low power dissipation
• Internal UVLO
• Cross-current protection
• 3 and 5 V compatible logic supply
• Thermal shutdown circuitry
• Ground fault protection
• Load short-circuit protection
• Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16
• Simple step and direction control interface
• Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
• Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
• Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
• Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
• Short-to-ground and shorted-load protection

Packing List:

• 1 piece of stepper driver A4988.