A4988 Stepper Motor Driver with Heat Sink

A4988 Stepper Motor Driver with Heat Sink is a compact, efficient, and reliable solution for precise stepper motor control in embedded systems, robotics, CNC machines, and 3D printers. Designed to drive bipolar stepper motors with ease, this driver module supports up to 1/16 microstepping, enabling smooth motion, reduced vibration, and accurate positioning. With its integrated current limiting, thermal shutdown, and overcurrent protection, the A4988 driver ensures safe and stable motor operation even under demanding conditions.

This module is based on the Allegro A4988 DMOS microstepping driver IC, widely used in motion control applications due to its efficiency, flexibility, and ease of interfacing with microcontrollers such as Arduino, Raspberry Pi, ARM, and PIC. The included aluminum heat sink enhances heat dissipation, allowing higher current output and improved long-term performance.

Key Features of A4988 Stepper Motor Driver with Heat Sink

• Microstepping Support: Supports full-step, half-step, quarter-step, eighth-step, and 1/16-step microstepping for ultra-smooth motor motion.

• Adjustable Current Control: Onboard potentiometer allows precise adjustment of motor current to match motor specifications.

• High Output Current: Delivers up to 2A per coil with adequate cooling (approximately 1A without heat sink).

• Wide Voltage Range: Operates from 8V to 35V, making it suitable for a wide range of stepper motors.

• Thermal Protection: Built-in thermal shutdown prevents overheating and protects the driver IC.

• Overcurrent & Short Circuit Protection: Enhances reliability and safety during operation.

• Simple Step & Direction Interface: Easy control using just two pins from a microcontroller.

• Compact Form Factor: Ideal for space-constrained projects and control boards.

• Heat Sink Included: Improves heat dissipation and supports higher current operation.

Technical Specifications

• Driver IC: Allegro A4988

• Motor Type: Bipolar stepper motors

• Operating Voltage (VMOT): 8V to 35V

• Logic Voltage (VDD): 3.3V to 5V

• Maximum Output Current: Up to 2A per coil (with cooling)

• Microstepping Modes: Full, 1/2, 1/4, 1/8, 1/16 step

• Control Interface: STEP and DIR pins

• Current Regulation: Adjustable via onboard potentiometer

• Protection Features: Thermal shutdown, overcurrent protection, under-voltage lockout

• Cooling: Aluminum heat sink included

• PCB Size: Compact standard module footprint

Applications of A4988 Stepper Motor Driver

The A4988 Stepper Motor Driver with Heat Sink is widely used across various industries and DIY projects due to its flexibility and performance:

• 3D Printers – Axis and extruder motor control

• CNC Machines – Precise control of X, Y, and Z axes

• Robotics – Joint movement, wheel drives, and actuators

• Automated Systems – Pick-and-place machines and conveyors

• Embedded Systems Projects – Motion control using Arduino or ARM

• Camera Sliders & Pan-Tilt Systems – Smooth and accurate positioning

• Educational & Research Projects – Learning stepper motor control and microstepping

Why Choose the A4988 Stepper Motor Driver with Heat Sink?

The A4988 stepper driver module offers an excellent balance of performance, affordability, and ease of use. Its microstepping capability ensures quieter motor operation and finer positional control, while the adjustable current limit helps prevent motor overheating and power loss. The added heat sink makes this module more durable and reliable for continuous operation.

Whether you are building a 3D printer, developing a robotics project, or designing an industrial automation system, the A4988 Stepper Motor Driver with Heat Sink is a trusted and proven choice for accurate and efficient stepper motor control.

Package Includes:

1 x A4988 Stepper Motor Driver with Heat Sink

FAQ

1. Where can we buy this A4988 Stepper Motor Driver with Heat Sink?

This product is available online at https://aiiottech.in/product/a4988-stepper-motor-driver-with-heat-sink/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this A4988 Stepper Motor Driver with Heat Sink after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: A4988 Stepper Motor Driver Module with Heatsink