About L298N Motor Driver Module – Details | New Topic [2024]

In this note, we are going to learn about L298N Motor Driver Module, also its pin details and specifications. Welcome to Poly Notes Hub, a leading destination for engineering notes for engineering students.

Author Name: Arun Paul.

What is L298N Motor Driver Module?

The L298N Motor Driver Module is an integrated circuit (IC) that controls the speed and direction of DC motors. It’s a popular choice for robotics and electronics projects because of its simplicity and versatility. The module can handle two motors at once, allowing for separate control of each motor’s speed and direction. It regulates the motor’s speed using pulse-width modulation (PWM) signals from a microcontroller, and the motor’s rotation direction is determined by controlling the direction of current flow. Overall, the L298N Motor Driver Module is an effective tool for powering and controlling DC motors in a variety of applications.

Meaning of L298N digit in the IC

• L: Typically signifies the IC’s maker, in this case STMicroelectronics. The “L” prefix is commonly used in STMicroelectronics part numbers.
• 298: This represents the integrated circuit’s model number or identifier. In this example, it refers to the L298 motor driver integrated circuit.
• N: Often refers to specific variations or versions of the IC. The “N” suffix may indicate special package kinds, temperature ranges, or other parameters. The L298N is commonly referred to as the plastic DIP (Dual In-line Package) package variation.

L298N Motor Driver Module Specifications

Below we listed some features of L298N Motor Driver Module –

1. Operating Voltage: The module normally operates between 5V and 35V.
2. Maximum Current: It can take up to 2A continuous current and 3A peak current per channel.
3. Logic Voltage: The logic voltage required to control the module is usually approximately 5V.
4. Control Interface: The module can be controlled by digital input signals from a microcontroller or other control circuitry.
5. Motor Compatibility: It works with a variety of DC motors, including brushed motors.
6. Motor Channels: The module normally has two channels, allowing you to operate two motors independently.
7. Built-in Protection: Some modules have features like overcurrent protection and thermal shutdown to protect the module and its linked components.
8. Heat Sink: Many modules include a built-in heat sink to dissipate heat generated during operation.

L298N Motor Driver Pin Diagram

Below we discuss about the L298N Motor Driver Pinout and their function –

1. Enable Pins (ENA, ENB): These pins are used to enable and disable motor outputs. When pulled high, the matching motor outputs are enabled; when pulled low, they are turned off.
2. Input Pins (IN1, IN2, IN3, IN4): These pins regulate the motor’s rotational direction and speed. By adjusting the logic values of these pins (high or low), you may control the direction of rotation and the speed with PWM signals.
3. Motor Outputs (OUT1, OUT2, OUT3, and OUT4): These pins are connected to the motor terminals. The motors’ direction and speed are controlled by signals received at the input pins.
4. Power Supply Pins (VCC1, VCC2): These pins are used to provide power to the module. Typically, VCC1 is linked to the logic voltage (5V), and VCC2 is linked to the motor power supply (up to 35V).
5. Ground Pins (GND): These pins are connected to the system’s ground.

Applications of L298N Motor Driver

Below we listed some important uses of L298N Motor Driver Module –

• Robotics: The module is commonly used on robotic platforms to control the movement of wheels, arms, and other actuators. It provides fine control over motor speed and direction, which is required for maneuverability and functionality in robotics projects.
• RC Vehicles: Whether it’s remote-controlled cars, boats, or drones, the L298N module can be used to control the motors that drive these vehicles. It allows for smooth acceleration, deceleration, and direction changes, enhancing the overall performance of RC vehicles.
• Automation Systems: The L298N module can be used to control a variety of devices in industrial and residential automation projects, including conveyor belts, gates, and doors. Its capacity to control numerous motors individually makes it ideal for complex automation jobs.