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Datasheet: L293D (Texas Instruments)

Quadruple Half-h Driver

 

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Texas Instruments
L293D
QUADRUPLE HALF-H DRIVER
SLRS008A SEPTEMBER 1986 REVISED MAY 1990
Copyright
1990, Texas Instruments Incorporated
31
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
600-mA Output Current Capability Per
Driver
Pulsed Current 1.2-A Per Driver
Output Clamp Diodes for Inductive
Transient Suppression
Wide Supply Voltage Range
4.5 V to 36 V
Separate Input-Logic Supply
Thermal Shutdown
Internal ESD Protection
High-Noise-Immunity Inputs
Functional Replacement for SGS L293D
description
The L293D is a quadruple high-current half-H
driver designed to provide bidirectional drive
currents of up to 600-mA at voltages from 4.5 V to
36 V. It is designed to drive inductive loads such as
relays, solenoids, dc and bipolar stepping motors,
as well as other high-current/high-voltage loads in
positive-supply applications.
All inputs are TTL-compatible. Each output is a
complete totem-pole drive circuit with a Darlington
transistor sink and a pseudo-Darlington source.
Drivers are enabled in pairs with drivers 1 and 2
enabled by 1, 2EN and drivers 3 and 4 enabled by
3, 4EN. When an enable input is high, the
associated drivers are enabled, and their outputs
are active and in phase with their inputs. External
high-speed output clamp diodes should be used
for inductive transient suppression. When the
enable input is low, those drivers are disabled, and
their outputs are off and in a high-impedance
state. With the proper data inputs, each pair of
drivers form a full-H (or bridge) reversible drive
suitable for solenoid or motor applications.
A V
CC1
terminal, separate from V
CC2
, is provided
for the logic inputs to minimize device power
dissipation.
The L293D is designed for operation from 0
C
to 70
C.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1, 2EN
1A
1Y
2Y
2A
V
CC2
V
CC1
4A
4Y
3Y
3A
3, 4EN
NE PACKAGE
(TOP VIEW)
HEAT SINK AND
GROUND
HEAT SINK AND
GROUND
logic symbol
4A
3, 4EN
3A
2A
1, 2EN
1A
15
9
10
7
1
2
4Y
3Y
2Y
1Y
14
11
6
3
EN
EN
EN
EN
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram
4A
3, 4EN
3A
2A
1, 2EN
1A
15
9
10
7
1
2
4Y
3Y
2Y
1Y
14
11
6
3
INPUTS
OUTPUT
Y
FUNCTION TABLE
(each driver)
A
EN
H
L
X
H
H
L
H
L
Z
H = high-level, L = low level,
X = irrelevant, Z = high-impedance (off)
In the thermal shutdown mode, the
output is in the high-impedance state
regardless of the input levels.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
L293D
QUADRUPLE HALF-H DRIVER
SLRS008A SEPTEMBER 1986 REVISED MAY 1990
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
schematics of inputs and outputs
Input
VCC2
Output
GND
TYPICAL OF ALL OUTPUTS
EQUIVALENT OF EACH INPUT
VCC1
Current
Source
GND
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Logic supply voltage range, V
CC1
(see Note 1)
36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output supply voltage range, V
CC2
36 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
O
3 V to V
CC2
+ 3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak output current (nonrepetitive, t
100
s)
1.2 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, I
O
600 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation at (or below) 25
C free-air temperature (see Notes 2 and 3)
2075 mW
. . . . . . .
Continuous total dissipation at 80
C case temperature (see Note 3)
5000 mW
. . . . . . . . . . . . . . . . . . . . . . . . .
Operating case or virtual junction temperature range, T
J
40
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTES:
1. All voltage values are with respect to the network ground terminal.
2. For operation above 25
C free-air temperature, derate linearly at the rate of 16.6 mW/
C.
3. For operation above 25
C case temperature, derate linearly at the rate of 71.4 mW/
C. Due to variations in individual device electrical
characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or
below the rated dissipation.
recommended operating conditions
MIN
MAX
UNIT
Logic supply voltage, VCC1
4.5
7
V
Output supply voltage, VCC2
VCC1
36
V
High level input voltage VIH
VCC1
7 V
2.3
VCC1
V
High-level input voltage, VIH
VCC1
7 V
2.3
7
V
Low-level input voltage, VIL
0.3
1.5
V
Operating free-air temperature, TA
0
70
C
The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic voltage
levels.
L293D
QUADRUPLE HALF-H DRIVER
SLRS008A SEPTEMBER 1986 REVISED MAY 1990
33
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, V
CC1
= 5 V, V
CC2
= 24 V, T
A
= 25
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
IOH = 0.6 A
VCC2 1.8 VCC2 1.4
V
VOL
Low-level output voltage
IOL = 0.6 A
1.2
1.8
V
VOKH
High-level output clamp voltage
IOK = 0.6 A
VCC2 + 1.3
V
VOKL
Low-level output clamp voltage
IOK = 0.6 A
1.3
V
IIH
High level input current
A
VI = 7 V
0.2
100
A
IIH
High-level input current
EN
VI = 7 V
0.2
10
A
IIL
Low level input current
A
VI = 0
3
10
A
IIL
Low-level input current
EN
VI = 0
2
100
A
All outputs at high level
13
22
ICC1
Logic supply current
IO = 0
All outputs at low level
35
60
mA
All outputs at high impedance
8
24
All outputs at high level
14
24
ICC2
Output supply current
IO = 0
All outputs at low level
2
6
mA
All outputs at high impedance
2
4
switching characteristics, V
CC1
= 5 V, V
CC2
= 24 V, T
A
= 25
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time, low-to-high-level output from A input
800
ns
tPHL
Propagation delay time, high-to-low-level output from A input
CL = 30 pF
See Figure 1
400
ns
tTLH
Transition time, low-to-high-level output
CL = 30 pF, See Figure 1
300
ns
tTHL
Transition time, high-to-low-level output
300
ns
PARAMETER MEASUREMENT INFORMATION
Output
CL = 30 pF
(see Note B)
GND
VCC1 VCC2
EN
A
5 V
24 V
Input
3 V
Y
TEST CIRCUIT
Pulse
Generator
(see Note A)
90%
10%
1.5 V
tf
tr
3 V
0
tPHL
VOH
tTHL
tTLH
VOLTAGE WAVEFORMS
50%
tPLH
Output
Input
VOL
1.5 V
10%
50%
90%
10%
10%
90%
90%
tw
NOTES: A. The pulse generator has the following characteristics: tr
10 ns, tf
10 ns, tw = 10
s, PRR = 5 kHz, ZO = 50
.
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms
L293D
QUADRUPLE HALF-H DRIVER
SLRS008A SEPTEMBER 1986 REVISED MAY 1990
34
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
24 V
5 V
10 k
VCC1
VCC2
16
3
1,2EN
1
1A
2
2A
7
3,4EN
9
3A
10
4A
15
Control A
Control B
4, 5, 12, 13
GND
Thermal
Shutdown
Motor
1Y
3
2Y
6
3Y
11
4Y
14
Figure 2. Two-Phase Motor Driver
IMPORTANT NOTICE
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
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DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL
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Copyright
1998, Texas Instruments Incorporated
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