L298n motor driver

Description The L298 is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the connection of an external sensing resistor. An additional supply input is provided so that the logic works at a lower voltage. Sorry! Your browser is out-of-date This browser is out of date and not supported by st.com. As a result, you may be unable to access certain features. Consider that modern browsers: • are more secure and protect better during navigation • are faster • are more compatible with newer technologies • provide a better experience and features

If you are planning on assembling your new robot, you will eventually want to learn how to control stepper motors. The easiest and inexpensive way to control stepper motors is to use the L298N motor driver. It can control both the speed and the spinning direction of any small to medium sized bipolar stepper motor such as the NEMA 17. If you wish to control multiple stepper motors, it is recommended that you use a self-contained dedicated stepper motor driver such as the A4988. If you want to know more about it, check this tutorial out. For single-stepper-motor applications, a driver like the L298N is fine, but if you want to construct your own CNC machine or 3D printer, you’ll need... Controlling a Stepper Motor With an H-Bridge The L298N module has two H-Bridges. Each H-bridge drives one of the electromagnetic coils of a stepper motor. By energizing these electromagnetic coils in a specific sequence, the shaft of the stepper can be moved forward or backward precisely in small steps. However, the speed of the motor is determined by how frequently these coils are energized. The following animation shows how H-bridges drive a stepper motor. Inside the L298N chip, you’ll find two standard H-bridges capable of driving a pair of DC motors or a single stepper motor. The L298N motor driver has a supply range of 5V to 35V and is capable of supplying 2A continuous current per coil, so it works very well with most of our stepper motors. Technical Specifications Here are the specific...

This L298N Motor Driver Module is a high power motor driver module for driving DC and Stepper Motors. This module consists of an L298 motor driver IC and a 78M05 5V regulator. L298N Module can control up to 4 DC motors, or 2 DC motors with directional and speed control. L298N ModulePinout Configuration Pin Name Description IN1 & IN2 Motor A input pins. Used to control the spinning direction of Motor A IN3 & IN4 Motor B input pins. Used to control the spinning direction of Motor B ENA Enables PWM signal for Motor A ENB Enables PWM signal for Motor B OUT1 & OUT2 Output pins of Motor A OUT3 & OUT4 Output pins of Motor B 12V 12V input from DC power Source 5V Supplies power for the switching logic circuitry inside L298N IC GND Ground pin Features & Specifications • Driver Model: L298N 2A • Driver Chip: Double H Bridge L298N • Motor Supply Voltage (Maximum): 46V • Motor Supply Current (Maximum): 2A • LogicVoltage: 5V • Driver Voltage: 5-35V • Driver Current:2A • Logical Current:0-36mA • Maximum Power (W): 25W • Current Sense for each motor • Heatsink for better performance • Power-On LED indicator Alternate Driver Modules: Related Components: LM298 Motor Driver IC, 78M05 Voltage Regulator, Note: Complete technical details can be found in the L298N Datasheet linked at the bottom of this page. Brief about L298N Module The L298N Motor Driver module consists of an L298 Motor Driver IC, 78M05 Voltage Regulator, resistors, capacitor, Power LED, 5V jumper in an integrated circuit. 78M0...

In this Arduino Tutorial we will learn how to control DC motors using Arduino. We well take a look at some basic techniques for controlling DC motors and make two example through which we will learn how to control DC motors using the L298N motor driver and the Arduino board. You can watch the following video or read the written tutorial below. PWM DC Motor Control PWM, or pulse width modulation is a technique which allows us to adjust the average value of the voltage that’s going to the electronic device by turning on and off the power at a fast rate. The average voltage depends on the duty cycle, or the amount of time the signal is ON versus the amount of time the signal is OFF in a single period of time. So depending on the size of the motor, we can simply connect an Arduino PWM output to the base of transistor or the gate of a MOSFET and control the speed of the motor by controlling the PWM output. The low power Arduino PWM signal switches on and off the gate at the MOSFET through which the high power motor is driven. Note: Arduino GND and the motor power supply GND should be connected together. H-Bridge DC Motor Control On the other hand, for controlling the rotation direction, we just need to inverse the direction of the current flow through the motor, and the most common method of doing that is by using an H-Bridge. An H-Bridge circuit contains four switching elements, transistors or So if we combine these two methods, the PWM and the H-Bridge, we can have a complete...

If you want to build a small robot with a motor, you are likely to reach for an L298N to interface your microcontroller to the motor, probably in an H-bridge configuration. [Dronebot] has used L298N chips like this many times. In the video below, he uses a TB6612FNG instead, taking advantage of the device’s use of MOSFETs. The TB6612 may be a little more expensive, but it’s clearly worth it. You can get breakout boards for the tiny chips. [DroneBot] looks at several ready-to-go breakout boards. They are not drop-in compatible, though. For example, the L298N can operate motors from 4.5 to 46V while the TB6612 can go from 2.5 to 13.5V on the motor voltage. The L298N also handles more current. However, because of its relatively low efficiency, it needs a heat sink. The TB6612 boasts up to 95% efficiency and also has a low current standby mode. Of course, the TB6612 drops much less voltage which is great if you are using low voltage motor. Assuming the new device is suitable for your hardware, the software isn’t really very different from L298N programs. If you know how to use the L298N, you can probably just snag a break out board, download the library, and be off to the races — no pun intended. If you want more • • • • Posted in Tagged Post navigation This is way better that the “Old Standard” L298N chips!! Have you looked at the A4950? I’ve used these in a BBB driven design. A single H bridge at +/-3.5A and 40V. All in an “8-pin SOICN with exposed thermal pad (suffix LJ)” p...