A4988 Microstepping Motor Driver

Complete motor driver with easy operation for bipolar stepper motors.

• Operating Voltage: Up to 35 V
• Output Drive Capacity: 2 A
• Decay Modes: Full-, half-, quarter-, eighth-, and sixteenth-step
• Current Regulator: Fixed off-time
• Translator: Built-in for easy operation
• Chopping Control: Automatic selection of current decay mode
• Interface: Simple one-pulse input for microstepping
• Power Dissipation: Internal synchronous rectification control

Features:

• Low RDS(ON) outputs
• Automatic current decay mode detection/selection
• Mixed and Slow current decay modes
• Synchronous rectification for low power dissipation

The A4988 is an ideal fit for applications without a complex microprocessor or in scenarios where the microprocessor is overburdened. It includes thermal shutdown, under-voltage lockout, and crossover-current protection for added safety.

*Images are for illustration only; actual product may vary.*