L293D Motor Driver Board: Price, Pinout and Datasheet

The L293D motor driver board stands as a crucial component in the world of robotics and automation, serving as a bridge between microcontrollers and motors. In this article, we will introduce the pricing, pinout configuration, and datasheet specifications of the L293D motor driver IC, let’s explore it.

L293D Motor Driver Board Description

The L293D Motor Driver Board is a compact circuit board designed to facilitate the control of DC motors and other similar devices using the L293D motor driver IC. It simplifies the process of interfacing motors with microcontrollers, Arduino boards, or other control systems.

L293D motor driver board

L293D Motor Driver IC

The L293D is a dual H-bridge motor driver IC, capable of controlling the movement of two DC motors or a single stepper motor. Each H-bridge allows bidirectional control, enabling motors to move forward or backward. The IC can handle peak currents of up to 600mA and continuous currents of around 350mA, making it suitable for a range of small to moderate-sized motors.

L293D motor driver ic

L293D Motor Driver Board Price

The price of an L293D Motor Driver Board typically ranged from a few dollars to around $10 USD.

However, prices can fluctuate due to factors like availability, demand, and any new product releases. 

L293D Motor Driver IC Specifications and Features

L293D Motor Driver IC Specifications:

• Supply Voltage Range: 4.5 V to 36 V
• Input-Logic Supply: Separate
• ESD Protection: Internal
• High Noise Immunity: Yes
• Output Current: 600 mA per channel
• Peak Output Current: 1.2 A per channel
• Output Clamp Diodes: Included
• Operating Temperature: 0°C to 70°C
• Automatic Thermal Shutdown: Yes

key features of the L293D Motor Driver IC

• Bidirectional control for two DC motors or one stepper motor.
• High peak current handling: 600mA.
• Continuous current support: 350mA.
• Built-in protection diodes for voltage spike suppression.
• Logic-level compatibility (TTL and CMOS).
• Enable pins for independent motor control.
• Separate power supplies for motors and logic.
• Thermal shutdown protection.
• Wide motor voltage range: 4.5V to 36V.
• Compact design for easy integration.
• Cost-effective solution for motor control applications.

L293D Motor Driver IC Pinout

L293D motor driver pinout

How Does L293D Motor Driver Work

The L293D Motor Driver IC's functionality involves regulating the movement and direction of connected motors based on input signals. There are four input pins responsible for direction control: pins 2 and 7 (1A and 2A) on the left side, and pins 15 and 10 (3A and 4A) on the right side of the IC.

L293D Motor Driver IC working

To clarify the working principle with an example, consider a motor connected to the left output pins (pin 3 and pin 6). To control this motor's rotation, input logic is applied to pins 2 and 7 (1A and 2A).

Here are the control scenarios:

• Clockwise Direction: Set Pin 2 to HIGH and Pin 7 to LOW.
• Counter Clockwise Direction: Set Pin 2 to LOW and Pin 7 to HIGH.
• Idle - No Rotation: Set both Pin 2 and Pin 7 to either LOW or HIGH.
• Similarly, the motor on the right side, connected to pins 11 and 14, can be controlled using pins 10 and 15.

The corresponding control scenarios for the right motor are:

• Clockwise Direction: Set Pin 10 to HIGH and Pin 15 to LOW.
• Counter Clockwise Direction: Set Pin 10 to LOW and Pin 15 to HIGH.
• Idle - No Rotation: Set both Pin 10 and Pin 15 to either LOW or HIGH.

L293D Motor Driver Application

Typical Application of L293D:

The Two-Phase Motor Driver (L293) is designed to efficiently control and drive two-phase stepper motors. It's commonly used in applications where precise and synchronized motor movement is required, such as robotics, CNC machines, 3D printers, and automated systems. The L293 motor driver provides bi-directional control, allowing for accurate control of motor rotation and position.

L293D application

Other application of L293D:

Robotics: The L293D is widely used in robotics for driving and controlling the movement of robotic platforms and arms.

Automated Systems: It's utilized in automated systems where controlled motor motion is required, such as conveyor belts and automated doors.

Hobbyist Projects: The motor driver is a favorite among hobbyists for creating remote-controlled cars, drones, and other motor-driven projects.

CNC Machines: In computer numerical control (CNC) applications, the L293D can be used to control the movement of stepper motors in precision machining.

Actuators: The motor driver is employed in various applications requiring precise actuation, such as motorized valves and linear actuators.

Remote-Controlled Vehicles: It's commonly used in remote-controlled cars, boats, planes, and other vehicles to manage motor speed and direction.

Automation Systems: The L293D can be found in systems that require automation, like smart home devices and industrial machinery.

Educational Projects: It's frequently used in educational settings to teach students about motor control, electronics, and microcontroller interfacing.

Pan-and-Tilt Mechanisms: The motor driver can be used to control the movement of camera platforms, like pan-and-tilt mechanisms.

Motorized Displays: In applications like motorized signage or displays, the L293D can control the motion of moving parts.

L293D Motor Driver Functional Block Diagram

L293D motor driver block diagram

L293D Motor Driver IC Datasheet

Download  L293D motor driver ic datasheet>>

Conclusion

In conclusion, the L293D motor driver board represents an essential tool in the arsenal of robotics and automation enthusiasts, enabling precise motor control with simplicity and efficiency. L293D IC pinout configuration and comprehensive datasheet resources empower designers to seamlessly integrate motor control into their applications.

Whether you are building robots, automated vehicles, or motion-controlled systems, the L293D motor driver board will undoubtedly play a pivotal role in enhancing the motor control precision and versatility of your electronic designs.