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L298N

L298N

STMicroelectronics
Classic dual H-bridge driver option for higher-level motor driver implementations and legacy designs.
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Overview

The L298N is a classic dual H-bridge driver IC from STMicroelectronics used to control two DC motors or one bipolar stepper motor. It provides discrete, direct drive for motors from a logic-level interface, making it useful in higher-level motor driver designs and legacy systems. The part is widely available and commonly found on hobbyist motor driver modules and breakout boards.

Why Choose This Part

The L298N is a well-known, time-tested solution with broad availability and extensive community documentation and wiring examples. It has simple TTL-compatible inputs that make it easy to interface to microcontroller PWM and GPIO pins, and many breakout modules include connectors and basic protection making it convenient for breadboard prototyping. For engineers maintaining or updating legacy designs, its form factor and compatibility are practical advantages.

Applications

Dual DC motor control
Drive and direction-control two independent DC motors for small robots, vehicles, and toys.
Bipolar stepper motor drive
Control a bipolar stepper motor in open-loop motion applications where a simple H-bridge solution is acceptable.
Educational motor driver modules
Use on prototyping boards and kits for learning PWM speed control, direction, and basic motor driver principles.
Low-cost actuator control
Interface solenoid-type actuators or simple gearmotors in prototype and legacy industrial designs.

Getting Started

There are no dedicated IDEs for the L298N itself; you control it from a microcontroller (Arduino, STM32, AVR, etc.) using GPIO and PWM outputs. Many vendors sell ready-to-use L298N motor driver modules that simplify wiring and include screw terminals and onboard regulators - use those for quick prototyping on a breadboard. Pay attention to proper motor power supply wiring and provide adequate heat sinking for continuous motor loads.

Also Consider

L293DNE STMicroelectronics - Another widely used legacy dual-H-bridge with easier-to-use packaging for low-power hobby motors and many available breakout boards.
SN754410NE TITexas Instruments - A popular quadruple half-H driver in DIP form that is pin-compatible with many L293 family designs and common in prototyping.
TB6612FNG Toshiba - A modern, compact dual motor driver commonly used as a lower-power, more efficient alternative on hobby and small-robot platforms.