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L298N

Dual full-bridge motor driver, 46V, 4A total, TTL logic, Multiwatt-15, DC/stepper motors

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Manufacturer Part：

L298N

Package：

Multiwatt-15 Vertical (through-hole, 20.2 x 5.0 mm)

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Description

Product Overview

The L298N from STMicroelectronics is a Dual Full-Bridge Driver IC in a 15-lead Multiwatt vertical package. It is designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC motors, and stepper motors at supply voltages up to 46 V and total DC current up to 4 A.

Key Specifications

Configuration Dual Full Bridge
Supply Voltage Up to 46 V
Output Current (per bridge) 2 A DC
Total DC Current 4 A
Peak Output Current 3 A
Logic Input Voltage TTL compatible
Enable Inputs 2 (independent)
Saturation Voltage Low (1.8V typ @ 1A)
Operating Temperature -25°C to +130°C
Package Multiwatt-15 Vertical

Features

  • Operating supply voltage up to 46 V
  • Total DC current up to 4 A
  • Low saturation voltage for higher efficiency
  • Overtemperature protection
  • Logical “0” input voltage up to 1.5 V (high noise immunity)
  • Two independent enable inputs
  • External sense resistor connections for current monitoring

Applications

  • Dual brush DC motor drive
  • Stepper motor control
  • Relay and solenoid driving
  • Robotics and automation
  • Automotive motor control

The L298N from STMicroelectronics is a high-voltage, high-current dual full-bridge driver IC designed to accept standard TTL logic levels and drive inductive loads such as DC motors, stepper motors, relays, and solenoids. It is one of the most widely used motor driver ICs in hobbyist and educational projects. The device features two enable inputs for independent bridge control, and the lower transistors of each bridge have their emitters connected together for external current sensing via sense resistors.

The L298N contains two independent full H-bridge circuits, each capable of driving a DC motor bidirectionally or a stepper motor coil. Each bridge consists of four power transistors in an H-bridge configuration. By applying appropriate logic levels to the input pins (IN1/IN2 for bridge A, IN3/IN4 for bridge B), the current direction through the load can be reversed, enabling forward/reverse motor control. The enable pins (ENA, ENB) allow PWM speed control when driven with a pulse-width modulated signal. Current sensing is achieved by connecting sense resistors between the sense pins and ground.

Pin Name Type Function
1 CURRENT SENSE A Output Bridge A current sense (connect sense resistor to GND)
2 OUTPUT 1 Output Bridge A output 1 (motor terminal)
3 OUTPUT 2 Output Bridge A output 2 (motor terminal)
4 VS Power Motor supply voltage (up to 46V)
5 INPUT 1 Input Bridge A logic input 1
6 ENABLE A Input Bridge A enable (active high, PWM input)
7 INPUT 2 Input Bridge A logic input 2
8 GND Ground Ground
9 VSS Power Logic supply voltage (5V)
10 INPUT 3 Input Bridge B logic input 1
11 ENABLE B Input Bridge B enable (active high, PWM input)
12 INPUT 4 Input Bridge B logic input 2
13 OUTPUT 3 Output Bridge B output 1 (motor terminal)
14 OUTPUT 4 Output Bridge B output 2 (motor terminal)
15 CURRENT SENSE B Output Bridge B current sense
  • DC motor speed and direction control
  • Bipolar stepper motor driving
  • Robot locomotion and arm control
  • Relay and solenoid switching
  • Automotive wiper and window motor control
Manufacturer Part Number Package Notes
STMicroelectronics L298P PowerSO-20 SMD version of L298N
STMicroelectronics L298HN Multiwatt-15 H Horizontal mount variant
Texas Instruments DRV8833 HTSSOP-16 Dual H-bridge, lower voltage
Allegro A4988 TSSOP-28 Stepper driver with microstepping
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We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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