Here is a logic table for the inputs of L293D and the motor state corresponding to that input. Output pins 3 & 6 should be connected to motor 1, Pins 11 & 14 should be connected to motor 2. Input pins 2, 7, 10, 15 are used to operate the motor in your desired direction. Enable1 for motor 1 and Enable 2 is for motor 2. Vss is meant for supplying power to the motor we are about to drive, for example if we are going to drive a 12V motor you should give 12V input to this 16th pin Vss.Įnable pins are meant to make the respective motor drivers ready to operate, supplying high signal will activate the corresponding drivers. This Vs input voltage should not exceed 7 V or it will damage the IC. Vs is meant for its own internal operation and it will not use this input for driving motors. There are two types of supply voltage for this IC Vs and Vss.
The L293D is a 16 pin IC which is known for their efficiency in controlling DC motors. Lets move into the working of this circuit. Tin圜AD is only available in the Windows version. It supports PCB layout programs with several netlist formats and can also produce SPICE simulation netlists. It supports standard and custom symbol libraries. The above circuit illustrates the bidirectional motor controller using this simple L293D. Tin圜AD is a simple and basic electronic circuit schematic and PCB designer. This IC is capable of driving two motors at a single time in either direction and it can even provide drive currents up to 1A at voltages 4.5V to 36V. L293D is a similar motor driver mostly employed along with the Mircocontrollers to perform the motor action. Motor Controller driver IC’s are widely used in electronic circuits to control the motor with ease and to drive it efficiently.
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