L293D
The L293D is a 16 pin motor driver integrated circuit used to drive
motors. It consists of two H-bridge embedded in a single chip. The L293D is
capable of running two DC motors independently and also able to reverse or change
the direction of rotation of the motor. The IC can supply a motor with
operating voltage of up to 36V with a current
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| L293D motor driver |
Pin1 (Enable 1,2): Enables input 1 and input 2. So when high, left part of the IC is enabled and when low left part is disabled
Pin2 (Input 1): when high, current flows through output 1
Pin3 (Output 1): Connected to one terminal of the motor, M1
Pin4 (Ground): Connect to the ground
Pin5 (Ground): Connect to the ground
Pin6 (Output 2): Connected to the other terminal of the motor, M1
Pin7 (Input 2): When high, current flows through output 2
Pin8 (Vcc2 (Vs)): Voltage to be supplied to the motor
Pin9 (Enable 3,4): Enables input 3 and input 4. So when high, right part of the IC is enabled and when low right part is disabled
Pin10 (Input 3): When high current flows through output 3
Pin11 (Output 3): Connected to one of the terminals of motor, M2
Pin12 (Ground): Connect to the ground
Pin13 (Ground): Connect to the ground
Pin14 (Output 4): Connected to the other of the terminal of motor, M2
Pin15 (Input 4): When high current flows through output 4
Pin16 (Vcc2 (Vss)): Voltage to supply to the IC
Summary table
The pin configuration of the L293D IC is shown in the
table below.
Reference: Olome Baudouin E. "Design and realization of an automatic industrial sorting machine", University of Bamenda, July 2019.