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Texas Instruments
Texas Instruments

L293D Datasheet

QUADRUPLE HALF-H DRIVER


L293D Datasheet Preview


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 VCC1 terminal, separate from VCC2, is provided
for the logic inputs to minimize device power
dissipation.
The L293D is designed for operation from 0°C
to 70°C.
L293D
QUADRUPLE HALF-H DRIVER
SLRS008A – SEPTEMBER 1986 – REVISED MAY 1990
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
logic symbol
1A
1, 2EN
2A
3A
3, 4EN
4A
2
1
7
10
9
15
EN
EN
EN
EN
3
1Y
6
2Y
11
3Y
14
4Y
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram
1A
1, 2EN
2A
2
1
7
3
1Y
6
2Y
3A
3, 4EN
4A
10
9
15
11
3Y
14
4Y
FUNCTION TABLE
(each driver)
INPUTS‡
A EN
OUTPUT
Y
HH
LH
XL
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1990, Texas Instruments Incorporated
3–1
Page 1

L293D
QUADRUPLE HALF-H DRIVER
SLRS008A – SEPTEMBER 1986 – REVISED MAY 1990
schematics of inputs and outputs
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)
Logic supply voltage range, VCC1 (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Output supply voltage range, VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 3 V to VCC2 + 3 V
Peak output current (nonrepetitive, t 100 µs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1.2 A
Continuous output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 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, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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
VCC1 7 V
2.3 VCC1
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.
3–2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Page 2

L293D
QUADRUPLE HALF-H DRIVER
SLRS008A – SEPTEMBER 1986 – REVISED MAY 1990
electrical characteristics, VCC1 = 5 V, VCC2 = 24 V, TA = 25°C
PARAMETER
TEST CONDITIONS
VOH
VOL
VOKH
VOKL
IIH
High-level output voltage
Low-level output voltage
High-level output clamp voltage
Low-level output clamp voltage
High-level input current
A
EN
IOH = – 0.6 A
IOL = 0.6 A
IOK = – 0.6 A
IOK = – 0.6 A
VI = 7 V
IIL Low-level input current
A
EN VI = 0
All outputs at high level
ICC1 Logic supply current
IO = 0
All outputs at low level
All outputs at high impedance
All outputs at high level
ICC2 Output supply current
IO = 0
All outputs at low level
All outputs at high impedance
MIN
VCC2 – 1.8
TYP
VCC2 – 1.4
1.2
VCC2 + 1.3
1.3
0.2
0.2
–3
–2
13
35
8
14
2
2
MAX
1.8
100
± 10
– 10
– 100
22
60
24
24
6
4
UNIT
V
V
V
V
µA
µA
mA
mA
switching characteristics, VCC1 = 5 V, VCC2 = 24 V, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH
tPHL
tTLH
tTHL
Propagation delay time, low-to-high-level output from A input
Propagation delay time, high-to-low-level output from A input
Transition time, low-to-high-level output
Transition time, high-to-low-level output
CL = 30 pF, See Figure 1
MIN TYP MAX UNIT
800 ns
400 ns
300 ns
300 ns
PARAMETER MEASUREMENT INFORMATION
Input 5 V 24 V
Pulse
Generator
(see Note A)
3V
VCC1 VCC2
A
Y
EN
GND
TEST CIRCUIT
Output
CL = 30 pF
(see Note B)
90%
Input 1.5 V
tf
10%
10%
tw
tr
90%
1.5 V
3V
0
Output
90%
tPHL
50%
10%
tTHL
50%
10%
tPLH
90% VOH
VOL
tTLH
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: tr 10 ns, tf 10 ns, tw = 10 µs, PRR = 5 kHz, ZO = 50 .
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3–3
Page 3
Part Number L293D
Manufactur Texas Instruments
Description QUADRUPLE HALF-H DRIVER
Total Page 5 Pages
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