What is L298N? – Dual H-Bridge Motor Controller

What is L298N?

This is a dual full-bridge driver integrated circuit (IC) designed to control inductive loads such as DC motors and stepper motors. It can drive up to 2 amps per channel, with a voltage range of 5V to 46V, making it suitable for a wide range of motor control applications.

Function: Dual H-Bridge Motor Controller

Package: Multiwatt15 Type

Manufacturer: STMicroelectronics

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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.

It is a high voltage, high current, dual full-bridge motor driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors.

 

L298N Image

 

Features

1. OPERATING SUPPLY VOLTAGE UP TO 46 V

2. TOTAL DC CURRENT UP TO 4 A

3. LOW SATURATION VOLTAGE

4. OVERTEMPERATURE PROTECTION

5. LOGICAL “0” INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY)

Advantages

1. Can control both DC and stepper motors
2. Can handle high current loads
3. Wide voltage range makes it suitable for a variety of applications
4. Built-in diodes protect against back EMF
5. Can be controlled with a microcontroller or other logic circuits

Disadvantages

1. Requires additional components such as power supply and motor
2. May require heat sinks to dissipate heat during operation
3. Limited to two motor channels
4. Requires careful wiring and circuit design to prevent damage to th

Pinout

L298N datasheet pinout

 

Reference Site

1. Full-Bridge Motor Driver Dual  : https://www.sparkfun.com/products/9479

2. Arduino Modules L298N Dual H-Bridge Motor Controller : http://www.instructables.com/

3. Dual Full Bridge Driver : http://www.st.com/

FAQs

Q1: Can this IC be used to control a stepper motor?
A1: Yes, It is suitable for controlling both DC and stepper motors.

Q2: Does the L298N have built-in protection against back EMF?
A2: Yes, It has built-in diodes that protect against back EM

L298N Datasheet

L298N pdf

Other data sheets are available within the file: L298HN, L298P

 

17HS2408 Datasheet PDF – 2 Phase Hybrid Stepper Motor

Part Number: 17HS2408

Function : 2 Phase Hybrid Stepper Motor

Motor Length : Size 28mm

Manufacturer: MotionKing (China) Motor Industry ( www.MotionKing.com )

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17hs2408-stepper-motor

 

Description

The 17HS2408 is 1.8 degree, 28 mm, Hybrid Stepper Motor.

Stepper motor is made up of rotor and stator winding magnet coil. A certain electric current goes through the stator winding timely, then produces a rotating magnetic field within the motor.  under the action of magnetic suction, the rotor will follow this creates a rotating magnetic field, the stator and rotor flux in each chain, produce rotary torque output.

 

Wiring Diagram

17hs2408-datasheet-pinout

 

Ordering Information

17hs2408-ordering-information

Other data sheets are available within the file:

17HS3401, 17HS3410, 17HS3430, 17HS3630, 17HS4401, 17HS4402, 17HS8401

 

17HS2408 Datasheet

 

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