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L293D USER GUIDE
USER GUIDE FOR
L293D MOTOR DRIVER BOARD
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L293D USER GUIDE
Introduction:
The L293D is a monolithic integrated high voltage, high current four channel
driver designed to accept standard DTL or TTL logic levels and drive inductive
loads (such as relays solenoides, DC and stepping motors) and switching power
transistors.
Features:
 Light weight, small dimension
 Super driver capacity
 Two enable inputs are provided to enable or disable the device
independently of the input signals
 2 DC motor/ 4 coil dual phrase stepper motor output
 4 standard mounting holes
Specifications:
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Driver: L293D
Driver power supply: +7V ~ +36V
Driver peak current: 1.2A
Logic power output Vss: +5 ~ +7V (internal supply +5V)
Max drive power: 5W
Working temperature: -40 oC ~ +150 oC
Dimension: 50mm*40mm *20mm (l*b*h)
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L293D USER GUIDE
Hardware connection:
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L293D USER GUIDE
Pin configurations:
 Double H driver module can drive two DC motors at the same time.
 The board has a total of 20 pins.
 Enable 1 & 5V: These pins are to be shorted with a jumper if
the input signals have to control the motors, if in case the
control of the motors is dependent on the microcontroller data
then the enable pin has to be connected to the controller data
pins.
 Enable 2 & 5V: These pins are to be shorted with a jumper if
the input signals have to control the motors, if in case the
control of the motors is dependent on the microcontroller data
then the enable pin has to be connected to the controller data
pins.
 Digital port D1,D2,D3,D4:These four pins are used to control
the direction of the motor. D1 and D2 for one motor & D3 and
D4 for the other motor. For example D1=0, D2=1, motor 1=
forward & D3=0, D4= 1, motor 2= forward. Similarly if the
data is D1=1, D2=0 & D3=1, D4=0 the motors will rotate in
reverse direction.
 5V, G, D3:The three pins are to be used when a sensor has to
be interfaced directly for the motor control. Sensor supply is on
board and the pin D3 is to be connected to the output of the
sensor which will be control pin of one motor.
 5V, G, D1:The three pins are to be used when a sensor has to
be interfaced directly for the motor control. Sensor supply is on
board and the pin D1 is to be connected to the output of the
sensor which will be control pin of other motor.
 D2, G:These two pins are to be short using a jumper when
sensor is directly interfaced for the motor control.
 D4, G:These two pins are to be short using a jumper when
sensor is directly interfaced for the motor control.
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L293D USER GUIDE
 Table for enable and digital port:
ENABLE
0
1
1
•
D1
D2
D3
D4
(Motor
1)
(Motor
1)
(Motor
2)
(Motor
2)
DIRECTION
OF THE
MOTORS
0
0
1
1
1
0
0
0
1
1
1
0
No change
Clockwise
Anticlockwise
Actual Hardware connections:
Ordering Information
K-IMAGINATIONS,
Pune
9960860390
E-mail us at:[email protected] , [email protected]
K-IMAGINATIONS | www.kimaginations.com
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