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L293 Datasheet Preview

L293 Datasheet

PUSH-PULL FOUR CHANNEL DRIVERS

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LINEAR INTEGRATED CIRCUITS
PUSH-PULL FOUR CHANNEL DRIVERS
PRELIMINARY DATA
The L293 and the L293E are monolithic integrated high voltage, high current four channel drivers in
dual in-line plastic package with 16 leads and 20 leads respectively. They are designed to accept standard
DTL or TTL input logic levels and drive inductive loads (such as relays, solenoids, DC and stepping
motors) and switching power transistors.
Both are provided of complementary push-pull output stage, two inhibit inputs (which disable two
channels each), and an additional supply inputs so that the logic circuitry may run at a lower voltage to
reduce power dissipation.
In the L293E the emitters of the lower transistors of each push-pull stage are not internally grounded
and the corresponding pins can be used for the connection of an external sensing resistor, making very
easy switch-mode current control.
.
The main features of the L293 and of the L293E are:
1A output current capability per channel
2A peak output current (non-repetitive) per channel
Inhibit facility
Overtemperature protection
Logical "0" input voltage up to 1.5V (high noise immunity).
The devices are assembled in new packages which have the four central pins connected together and used
for heatsinking and grounding.
ABSOLUTE MAXIMUM RATINGS
Vs
Vss
Vi
V inh
lout
Ptot
Tstg , Tj
Supply voltage
Logic supply voltage
Input voltage
Inhibit voltage
Peak output current (non-repetitive)
Total power dissipation at TgrOUnd-Pins= 800C
Storage and junction temperature
ORDERING NUMBERS: L293B (16 leads)
L293E (20 leads)
MECHANICAL DATA
36
36
7
7
2
5
-40 to 150
V
V
V
V
A
W
°C
Dimensions in mm
6/82
122




SGS-Ates

L293 Datasheet Preview

L293 Datasheet

PUSH-PULL FOUR CHANNEL DRIVERS

No Preview Available !

CONNECTION AND BLOCK DIAGRAM (L293)
(top view)
CHIP ENABLE 1
INPUT 1
OUTPUT 1
GNO
GNO
OUTPUT 2
INPUT 2
Vs
16 V55
15 INPUT 4
14 OUTPUT 4
13 GN 0
12 GNO
11 OUTPUT 3
10 I NPU T 3
9 CHIP ENABLE 2
5 - 1,'69
's
CONNECTION AND BLOCK DIAGRAM (L293E)
(top view)
CHIP ENABLE 1 1
INPUT 1
OUTPUT 1
SENSE 1
GNO
GND
SENSE 'I.
OUTPUT 2
INPUT 2
Vs 10
V"
INPUT 4
OUTPUT 4
SENSE 4
GNO
GND
SENSE 3
OUTPUT 3
INPUT 3
+Vs
123


Part Number L293
Description PUSH-PULL FOUR CHANNEL DRIVERS
Maker SGS-Ates
Total Page 8 Pages
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