L239D MOTOR DRIVER PDF

The ld can drive small and quiet big motors as well, check the Voltage Specification at the end of this page for more info. You can find the necessary pin diagram, working, a circuit diagram, Logic description and Project as you read through. It works on the concept of H-bridge. H-bridge is a circuit which allows the voltage to be flown in either direction.

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Pin Number. Pin Name. Enable 1,2. This pin enables the input pin Input 1 2 and Input 2 7. Input 1. Directly controls the Output 1 pin. Controlled by digital circuits.

Output 1. Ground pins are connected to ground of circuit 0V. Output 2. Input 2. Directly controls the Output 2 pin. Vcc2 Vs. Connected to Voltage pin for running motors 4. Enable 3,4. This pin enables the input pin Input 3 10 and Input 4 Input 3. Directly controls the Output 3 pin. Output 3. Connected to one end of Motor 2. Output 4. Connected to another end of Motor 2.

Input 4. Directly controls the Output 4 pin. Vcc2 Vss. As the name suggests it is mainly used to drive motors. A single LD IC is capable of running two DC motors at the same time; also the direction of these two motors can be controlled independently.

So if you have motors which has operating voltage less than 36V and operating current less than mA, which are to be controlled by digital circuits like Op-Amp, timers , digital gates or even Micron rollers like Arduino, PIC, ARM etc.. Using this LD motor driver IC is very simple. The IC works on the principle of Half H-Bridge , let us not go too deep into what H-Bridge means, but for now just know that H bridge is a set up which is used to run motors both in clock wise and anti clockwise direction.

As said earlier this IC is capable of running two motors at the any direction at the same time, the circuit to achieve the same is shown below. All the Ground pins should be grounded. The other is Vs Vcc2 which provides voltage for the motors to run, based on the specification of your motor you can connect this pin to anywhere between 4.

The input pins Input 1,2 are used to control the motor 1 and Input pins 3,4 are used to control the Motor 2. The input pins are connected to the any Digital circuit or microcontroller to control the speed and direction of the motor.

You can toggle the input pins based on the following table to control your motor. Motor 1 rotates in Clock wise Direction. Motor 2 rotates in Clock wise Direction.

Motor 1 rotates in Anti-Clock wise Direction. Motor 2 rotates in Anti -Clock wise Direction. Motor 1 stays still. Motor 2 stays still. Subscribe to stay updated with industry's latest Electronics components and news. Controlled by digital circuits 8 Vcc2 Vs Connected to Voltage pin for running motors 4.

Controlled by digital circuits 11 Output 3 Connected to one end of Motor 2 12 Ground Ground pins are connected to ground of circuit 0V 13 Ground Ground pins are connected to ground of circuit 0V 14 Output 4 Connected to another end of Motor 2 15 Input 4 Directly controls the Output 4 pin.

Speed and Direction control is possible Motor voltage Vcc2 Vs : 4. Component Datasheet. Tags Motor Driver. Get Our Weekly Newsletter!

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L293D Motor Driver IC

SunFounder LD is a monolithic integrated, high voltage, high current, 4-channel driver. Basically this means using this chip you can use DC motors and power supplies of up to 16 Volts, thats some pretty big motors and the chip can supply a maximum current of mA per channel, the LD chip is also what's known as a type of H-Bridge. The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e. The LD is quadruple high-current half-H drivers. It is designed to provide bidirectional drive currents of up to mA at voltages from 4. All inputs are TTL compatible. Each output is a complete totem-pole drive circuit, with a Darlington transistor sink and a pseudo- Darlington source.

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L293D Motor Driver Shield

The Motor Driver is a module for motors that allows you to control the working speed and direction of two motors simultaneously. This is designed to provide bidirectional drive currents at voltages from 5 V to 36 V. Pin 8: VSS, this pin is used to give power supply to connected motors from 5V to 36V maximum depends on Motor connected. Make sure that the Jumpers are preset on the Enable and Enable pins of module, so that motor will be enabled and work at maximum speed. Rotation of motor depends on Enable Pins.

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