LM358DR
LM358DR Dual General-Purpose Operational Amplifier 0.7M
L298N
Dual Full-Bridge Motor Driver IC for DC Motors and Stepper Motor Control
Technical Specification
| Feature | Details |
|---|---|
| Part Number | L298N |
| Manufacturer | STMicroelectronics |
| Description | Dual Full-Bridge Motor Driver |
| Series | L298 |
| Status | Active |
| Category | Integrated Circuits (ICs) – Power Management (PMIC) – Motor Drivers, Controllers |
| Motor Type | Brushed DC Motor, Stepper Motor |
| Number of Outputs | 2 Full Bridges |
| Output Current | 2A per Channel (Continuous) |
| Peak Output Current | 3A per Channel |
| Motor Supply Voltage | Up to 46V |
| Logic Supply Voltage | 4.5V ~ 7V |
| Interface | Parallel Logic Control |
| Operating Temperature | -25°C ~ +130°C |
| Package / Case | Multiwatt-15 |
| Mounting Type | Through Hole |
| Packaging | Tube |
| RoHS Status | RoHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Product Overview & Engineering Notes
Product Description:
The L298N is a high-voltage, high-current dual full-bridge motor driver developed by STMicroelectronics. Designed to drive inductive loads such as DC motors, bipolar stepper motors, relays, and solenoids, the device integrates two independent H-bridge channels capable of delivering up to 2A continuous current per channel. With motor supply voltages up to 46V and TTL-compatible control inputs, the L298N has become one of the most widely adopted motor driver ICs for industrial control, robotics, automation, and embedded development platforms.
Core Application Areas:
- Robotics: DC motor drive and differential steering control.
- Stepper Motor Systems: Bipolar stepper motor control for CNC and positioning systems.
- Industrial Automation: Actuators, relays, and motion control equipment.
- Educational Projects: Arduino, STM32, Raspberry Pi, and embedded motor control development.
- Smart Equipment: Automated doors, pumps, conveyors, and electromechanical systems.
Engineering Selection Guide:
- Dual H-Bridge Architecture: Supports independent control of two DC motors or one bipolar stepper motor.
- High Voltage Capability: Motor supply voltage support up to 46V enables use in industrial and high-power applications.
- Simple Logic Interface: TTL-compatible inputs allow direct interfacing with most microcontrollers and development boards.
- Thermal Design Consideration: For applications approaching the maximum output current, proper heatsinking is recommended to ensure stable operation.
- Legacy Industry Standard: The L298N remains a popular solution for educational and industrial designs, though newer MOSFET-based drivers may offer higher efficiency for battery-powered systems.
Supply Status:
The L298N remains an active and widely available motor driver IC. Due to its proven reliability, extensive documentation, and compatibility with common development platforms, it continues to see strong demand across industrial, educational, and maker markets.
FAQ
1. What is the L298N used for?
The L298N is used to drive DC motors, stepper motors, relays, and other inductive loads in robotics, automation, and embedded control applications.
2. How many motors can the L298N control?
The device contains two independent full H-bridge channels, allowing it to control two DC motors or one bipolar stepper motor simultaneously.
3. What is the maximum motor voltage supported by the L298N?
The L298N supports motor supply voltages up to 46V, making it suitable for a wide range of industrial and commercial motor control applications.
4. What is the maximum output current of the L298N?
The device can deliver 2A continuous current per channel, with peak currents up to 3A under appropriate thermal conditions.
5. Is the L298N suitable for Arduino and STM32 projects?
Yes. The L298N is widely used with Arduino, STM32, ESP32, Raspberry Pi, and other microcontroller platforms because of its simple logic interface and extensive software support.
6. What are the limitations of the L298N?
As a bipolar transistor-based driver, the L298N exhibits higher power dissipation and voltage drop compared to modern MOSFET motor drivers. For high-efficiency battery-powered applications, newer driver solutions may provide better performance.
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