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Texas Instruments
Texas Instruments

L293D Datasheet

QUADRUPLE HALF-H DRIVER


L293D Datasheet Preview


L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008B – SEPTEMBER 1986 – REVISED JUNE 2002
D Featuring Unitrode L293 and L293D
Products Now From Texas Instruments
D Wide Supply-Voltage Range: 4.5 V to 36 V
D Separate Input-Logic Supply
D Internal ESD Protection
D Thermal Shutdown
D High-Noise-Immunity Inputs
D Functional Replacements for SGS L293 and
SGS L293D
D Output Current 1 A Per Channel
(600 mA for L293D)
D Peak Output Current 2 A Per Channel
(1.2 A for L293D)
D Output Clamp Diodes for Inductive
Transient Suppression (L293D)
description
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.
N, NE PACKAGE
(TOP VIEW)
1,2EN
1A
1Y
HEAT SINK AND
GROUND
2Y
2A
VCC2
1
2
3
4
5
6
7
8
16 VCC1
15 4A
14 4Y
13 HEAT SINK AND
12 GROUND
11 3Y
10 3A
9 3,4EN
DWP PACKAGE
(TOP VIEW)
1,2EN
1A
1Y
NC
NC
NC
HEAT SINK AND
GROUND
NC
NC
2Y
2A
VCC2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC1
27 4A
26 4Y
25 NC
24 NC
23 NC
22 HEAT SINK AND
21 GROUND
20
19 NC
18 NC
17 3Y
16 3A
15 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.
On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.
A VCC1 terminal, separate from VCC2, is provided for the logic inputs to minimize device power dissipation.
The L293and L293D are characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments 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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2002, Texas Instruments Incorporated
1
Page 1

L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008B SEPTEMBER 1986 REVISED JUNE 2002
block diagram
1
01
12
0
1
3
4
M5
6
2
17
0
8
VCC1
16
15
4
14
13
12
11
3
10
9
1
0
1
0
1
0
VC
NOTE: Output diodes are internal in L293D.
TEXAS INSTRUMENTS
AVAILABLE OPTIONS
PACKAGE
TA
PLASTIC
DIP
(NE)
0°C to 70°C
L293NE
L293DNE
M
M
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
SMALL
OUTLINE
PLASTIC
DIP
(DWP)
(N)
0°C to 70°C
L293DWP
L293DDWP
L293N
L293DN
The DWP package is available taped and reeled. Add
the suffix TR to device type (e.g., L293DWPTR).
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Page 2

L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008B SEPTEMBER 1986 REVISED JUNE 2002
FUNCTION TABLE
(each driver)
INPUTS†
A EN
OUTPUT
Y
HH
H
LH
L
XL
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.
logic diagram
1A
1,2EN
2A
2
1
7
3A
3,4EN
4A
10
9
15
schematics of inputs and outputs (L293)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
3 1Y
6 2Y
11 3Y
14 4Y
EQUIVALENT OF EACH INPUT
VCC1
Current
Source
TYPICAL OF ALL OUTPUTS
VCC2
Input
Output
GND
GND
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3
Page 3

L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008B SEPTEMBER 1986 REVISED JUNE 2002
schematics of inputs and outputs (L293D)
EQUIVALENT OF EACH INPUT
VCC1
Current
Source
Input
TYPICAL OF ALL OUTPUTS
VCC2
Output
GND
GND
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC1 (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Output supply voltage, VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 V to VCC2 + 3 V
Peak output current, IO (nonrepetitive, t 5 ms): L293 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±2 A
Peak output current, IO (nonrepetitive, t 100 µs): L293D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1.2 A
Continuous output current, IO: L293 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1 A
Continuous output current, IO: L293D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 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
Maximum junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under absolute maximum ratingsmay cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditionsis not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
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.
4 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Page 4
Part Number L293D
Manufactur Texas Instruments
Description QUADRUPLE HALF-H DRIVER
Total Page 13 Pages
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