Green A4988 Stepper Motor Driver Module with Heatsink – Standard Quality
Description
The Green A4988 Stepper Motor Driver Module is a compact and efficient microstepping motor driver designed for controlling bipolar stepper motors in applications such as 3D printers, CNC machines, robotics, and automation systems. The module features an integrated translator and current control system, simplifying stepper motor control using only STEP and DIR interface signals.
Operating from 8V to 35V DC, the A4988 driver can deliver up to 1A per phase without additional cooling and up to 2A per phase when used with proper heatsinking and airflow. The module incorporates fixed off-time current regulation with automatic current decay mode selection, supporting both slow and mixed decay modes for improved motor performance.
The advanced mixed decay current control system helps reduce audible motor noise, improve stepping accuracy, and lower overall power consumption. Integrated synchronous rectification circuitry further enhances PWM efficiency during operation.
Built-in protection features include thermal shutdown, undervoltage lockout (UVLO), crossover current protection, ground fault protection, and short-circuit protection for reliable and safe operation.
The driver supports multiple microstepping modes including full-step, half-step, quarter-step, eighth-step, and sixteenth-step operation, enabling smooth and precise motor movement.
Note: Connecting or disconnecting the stepper motor while the driver is powered may damage the driver module. Always power off the system before changing motor connections.
Quality Information: Compared to standard variants, higher-quality versions of A4988 drivers may include additional PCB layers and gold-plated connector pins for improved electrical performance and durability.
Features
- Complete microstepping motor driver with built-in converter
- Supports full, 1/2, 1/4, 1/8, and 1/16 microstepping modes
- Automatic current decay mode detection and selection
- Mixed and slow current decay modes
- Low power dissipation synchronous rectification
- Reduced motor noise and smoother operation
- Improved step accuracy and reduced power consumption
- Integrated thermal shutdown protection
- Undervoltage lockout (UVLO) protection
- Crossover current and short-circuit protection
- Ground fault protection circuitry
- Compact and easy-to-use module design
Applications
- 3D printers
- CNC machines
- Robotics systems
- DIY automation projects
- Stepper motor control systems
- Embedded motion control applications
Package Includes
- 1 × Green A4988 Stepper Motor Driver Module – Standard Quality
- 1 × Aluminum Heatsink
Specifications
| Parameter | Value |
|---|---|
| Model Series | A4988 Series |
| Operating Voltage | 8V – 35V DC |
| Logic Voltage | 3V – 5.5V |
| Current Rating | 1A – 2A |
| Current without Heatsink | 1A |
| Current with Heatsink | 2A |
| Microstepping Modes | Full, 1/2, 1/4, 1/8, 1/16 Step |
| Input Voltage | 8V – 35V DC |
| Color | Dark Green |
| Protection Features | Thermal Shutdown, UVLO, Ground Fault, Short-Circuit Protection |
| Shipping Weight | 0.08 kg |
| Shipping Dimensions | 5 × 5 × 4 cm |
