2024年4月13日发(作者：饶南露)
L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004
D
Featuring Unitrode L293 and L293D
D
D
D
D
D
D
D
D
D
Products Now From Texas Instruments
Wide Supply-Voltage Range: 4.5 V to 36 V
Separate Input-Logic Supply
Internal ESD Protection
Thermal Shutdown
High-Noise-Immunity Inputs
Functionally Similar to SGS L293 and
SGS L293D
Output Current 1 A Per Channel
(600 mA for L293D)
Peak Output Current 2 A Per Channel
(1.2 A for L293D)
Output Clamp Diodes for Inductive
Transient Suppression (L293D)
N OR NE PACKAGE
NE PACKAGE
(TOP VIEW)
1,2EN
1A
1Y
HEAT SINK AND
GROUND
2Y
2A
V
CC2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC1
4A
4Y
HEAT SINK AND
GROUND
3Y
3A
3,4EN
DWP PACKAGE
(TOP VIEW)
description/ordering information
The L293 and L293D are quadruple high-current
half-H drivers. The L293 is designed to provide
bidirectional drive currents of up to 1 A at voltages
from 4.5 V to 36 V. The L293D is designed to
provide bidirectional drive currents of up to
600-mA at voltages from 4.5 V to 36 V. Both
devices are 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.
1,2EN
1A
1Y
NC
NC
NC
HEAT SINK AND
GROUND
NC
NC
2Y
2A
V
CC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC1
4A
4Y
NC
NC
NC
HEAT SINK AND
GROUND
NC
NC
3Y
3A
3,4EN
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. When the enable input is low, those drivers are disabled, and their outputs are
off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge)
reversible drive suitable for solenoid or motor applications.
ORDERING INFORMATION
T
A
HSOP (DWP)
Cto70
°C0°C to 70
PDIP (N)
PDIP(NE)PDIP (NE)
†
PACKAGE
†
Tube of 20
Tube of 25
Tube of 25
Tube of 25
ORDERABLE
PART NUMBER
L293DWP
L293N
L293NE
L293DNE
TOP-SIDE
MARKING
L293DWP
L293N
L293NE
L293DNE
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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.
Copyright 2004, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
•
1
L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004
description/ordering information (continued)
On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.
A V
CC1
terminal, separate from V
CC2
, is provided for the logic inputs to minimize device power dissipation.
The L293and L293D are characterized for operation from 0°C to 70°C.
block diagram
V
CC1
1
0
1
0
1
2
1
3
4
M
5
6
2
1
0
7
8
3
10
9
4
14
13
12
11
16
15
1
0
M
1
0
1
0
M
V
CC2
NOTE: Output diodes are internal in L293D.
FUNCTION TABLE
(each driver)
INPUTS
†
A
H
L
X
EN
H
H
L
OUTPUT
Y
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.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
•
2024年4月13日发(作者：饶南露)
L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004
D
Featuring Unitrode L293 and L293D
D
D
D
D
D
D
D
D
D
Products Now From Texas Instruments
Wide Supply-Voltage Range: 4.5 V to 36 V
Separate Input-Logic Supply
Internal ESD Protection
Thermal Shutdown
High-Noise-Immunity Inputs
Functionally Similar to SGS L293 and
SGS L293D
Output Current 1 A Per Channel
(600 mA for L293D)
Peak Output Current 2 A Per Channel
(1.2 A for L293D)
Output Clamp Diodes for Inductive
Transient Suppression (L293D)
N OR NE PACKAGE
NE PACKAGE
(TOP VIEW)
1,2EN
1A
1Y
HEAT SINK AND
GROUND
2Y
2A
V
CC2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC1
4A
4Y
HEAT SINK AND
GROUND
3Y
3A
3,4EN
DWP PACKAGE
(TOP VIEW)
description/ordering information
The L293 and L293D are quadruple high-current
half-H drivers. The L293 is designed to provide
bidirectional drive currents of up to 1 A at voltages
from 4.5 V to 36 V. The L293D is designed to
provide bidirectional drive currents of up to
600-mA at voltages from 4.5 V to 36 V. Both
devices are 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.
1,2EN
1A
1Y
NC
NC
NC
HEAT SINK AND
GROUND
NC
NC
2Y
2A
V
CC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC1
4A
4Y
NC
NC
NC
HEAT SINK AND
GROUND
NC
NC
3Y
3A
3,4EN
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. When the enable input is low, those drivers are disabled, and their outputs are
off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge)
reversible drive suitable for solenoid or motor applications.
ORDERING INFORMATION
T
A
HSOP (DWP)
Cto70
°C0°C to 70
PDIP (N)
PDIP(NE)PDIP (NE)
†
PACKAGE
†
Tube of 20
Tube of 25
Tube of 25
Tube of 25
ORDERABLE
PART NUMBER
L293DWP
L293N
L293NE
L293DNE
TOP-SIDE
MARKING
L293DWP
L293N
L293NE
L293DNE
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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.
Copyright 2004, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
•
1
L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004
description/ordering information (continued)
On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.
A V
CC1
terminal, separate from V
CC2
, is provided for the logic inputs to minimize device power dissipation.
The L293and L293D are characterized for operation from 0°C to 70°C.
block diagram
V
CC1
1
0
1
0
1
2
1
3
4
M
5
6
2
1
0
7
8
3
10
9
4
14
13
12
11
16
15
1
0
M
1
0
1
0
M
V
CC2
NOTE: Output diodes are internal in L293D.
FUNCTION TABLE
(each driver)
INPUTS
†
A
H
L
X
EN
H
H
L
OUTPUT
Y
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.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
•