A4988 driver Stepper Motor Driver at Best Price

The A4988 driver stepper motor is a widely used module in the field of robotics and automation.

The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with a built-in converter, easy to operate. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling).

A4988 driver Stepper Motor Driver includes a fixed off-time current regulator, the regulator can be in slow or mixed decay mode. The converter is the key to the easy implementation of the A4988.

There are no phase sequence tables, high-frequency control interface programming etc. The application of A4988 interface is very suitable for a complex microprocessor is not available or overload. In the stepping operation, the chopping control in the A4988 automatically selects the current decay mode (slow or mixed). The mix decay current control scheme can reduce the audible motor noise, increased step accuracy, and reduced power consumption.

It is designed to precisely control the movement of stepper motors, which are commonly employed in various applications requiring precise positioning and motion control.

The A4988 driver utilizes a pulse-width modulation (PWM) input signal to accurately regulate the current flowing through the coils of the stepper motor, thus controlling its rotation angle and speed.

It supports microstepping, allowing for smoother and more precise motion by dividing each step into smaller increments. With its built-in protection features such as thermal shutdown and overcurrent detection, the A4988 driver ensures reliable operation and safeguards the connected stepper motor from damage due to excessive heat or current.

Its compact size, high efficiency, and ease of use make it a preferred choice for hobbyists, makers, and professionals alike in a wide range of projects, including 3D printers, CNC machines, camera sliders, and robotic arms.

Provide internal synchronous rectification control circuitry, in order to improve the pulse width modulation (PWM) power consumption during operation.

Here are some common uses of the A4988 stepper motor driver in bullet points:

• Precise control of stepper motors in robotics and automation systems.
• Implementation in 3D printers for controlling the movement of print heads and build plates.
• Integration into CNC (Computer Numerical Control) machines for controlling the movement of cutting tools.
• Utilization in camera sliders for smooth and controlled camera movements in photography and videography.
• Application in robotic arms for precise positioning of joints and end effectors.
• Use in automated systems for tasks such as conveyor belt control or robotic assembly lines.
• Integration into telescopes and satellite dishes for precise alignment and tracking movements.
• Implementation in automated stage lighting systems for theatrical productions or concerts.
• Utilization in scientific instruments for precise positioning and control of sensors or actuators.
• Integration into DIY projects and hobbyist electronics for various motion control applications.

Internal circuit protection includes thermal shutdown with hysteresis, under-voltage lockout (UVLO) and crossover current protection. Don’t need special power-up sequencing. A4988 uses surface mount QFN package (ES), the size is 5 mm × 5 mm, nominal overall package height is 0.90 mm, with an exposed thermal pad to enhance the heat dissipation function.

Note: The difference between product “A4988 driver Stepper Motor Driver- Standard Quality” and “A4988 driver Stepper Motor Driver- Good Quality”  is, The good quality A4988 has more number of PCB layers and it features the connecting pins which are of gold plated as compared to other.

Features :

1. Automatic current decay mode detection/choice.
2. Mixed with slow current decay mode.
3. The low power dissipation of synchronous rectifier.
4. Internal UVLO(ultra voltage lockout).
5. Crossover current protection.
6. Thermal shutdown circuit.
7. Ground fault protection.
8. Loading and short circuit protection.
9. The optional five-step mode: full, 1/2, 1/4, 1/8 and 1/16.

Package Includes :

1 x A4988 driver Stepper Motor Driver- Standard Quality

1 x Heat sink.