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L293DD Datasheet PDF
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L293D
® L293DD
PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
600mA OUTPUT CURRENT CAPABILITY
PER CHANNEL
1.2A PEAK OUTPUT CURRENT (non repeti-
tive) PER CHANNEL
ENABLE FACILITY
OVERTEMPERATURE PROTECTION
LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V
(HIGH NOISE IMMUNITY)
INTERNAL CLAMP DIODES
DESCRIPTION
The Device is a monolithic integrated high volt-
age, high current four channel driver designed to
accept standard DTL or TTL logic levels and drive
inductive loads (such as relays solenoides, DC
and stepping motors) and switching power tran-
sistors.
To simplify use as two bridges each pair of chan-
nels is equipped with an enable input. A separate
supply input is provided for the logic, allowing op-
eration at a lower voltage and internal clamp di-
odes are included.
This device is suitable for use in switching appli-
cations at frequencies up to 5 kHz.
BLOCK DIAGRAM
SO(12+4+4)
Powerdip (12+2+2)
ORDERING NUMBERS:
L293DD
L293D
The L293D is assembled in a 16 lead plastic
packaage which has 4 center pins connected to-
gether and used for heatsinking
The L293DD is assembled in a 20 lead surface
mount which has 8 center pins connected to-
gether and used for heatsinking.
July 2003
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L293D - L293DD
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
VSS
Vi
Ven
Io
Ptot
Tstg, Tj
Parameter
Supply Voltage
Logic Supply Voltage
Input Voltage
Enable Voltage
Peak Output Current (100 µs non repetitive)
Total Power Dissipation at Tpins = 90 °C
Storage and Junction Temperature
PIN CONNECTIONS (Top view)
Value
36
36
7
7
1.2
4
– 40 to 150
Unit
V
V
V
V
A
W
°C
SO(12+4+4)
THERMAL DATA
Symbol
Rth j-pins
Rth j-amb
Rth j-case
Decription
Thermal Resistance Junction-pins
Thermal Resistance junction-ambient
Thermal Resistance Junction-case
(*) With 6sq. cm on board heatsink.
Powerdip(12+2+2)
max.
max.
max.
DIP
80
14
SO
14
50 (*)
Unit
°C/W
°C/W
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L293D - L293DD
ELECTRICAL CHARACTERISTICS (for each channel, VS = 24 V, VSS = 5 V, Tamb = 25 °C, unless
otherwise specified)
Symbol
VS
VSS
IS
ISS
VIL
VIH
IIL
IIH
Ven L
Ven H
Ien L
Ien H
VCE(sat)H
VCE(sat)L
VF
tr
tf
ton
toff
(*) See fig. 1.
Parameter
Supply Voltage (pin 10)
Logic Supply Voltage (pin 20)
Total Quiescent Supply Current
(pin 10)
Total Quiescent Logic Supply
Current (pin 20)
Input Low Voltage (pin 2, 9, 12,
19)
Input High Voltage (pin 2, 9,
12, 19)
Low Voltage Input Current (pin
2, 9, 12, 19)
High Voltage Input Current (pin
2, 9, 12, 19)
Enable Low Voltage
(pin 1, 11)
Enable High Voltage
(pin 1, 11)
Low Voltage Enable Current
(pin 1, 11)
High Voltage Enable Current
(pin 1, 11)
Source Output Saturation
Voltage (pins 3, 8, 13, 18)
Sink Output Saturation Voltage
(pins 3, 8, 13, 18)
Clamp Diode Forward Voltage
Rise Time (*)
Fall Time (*)
Turn-on Delay (*)
Turn-off Delay (*)
Test Conditions
Vi = L ; IO = 0 ; Ven = H
Vi = H ; IO = 0 ; Ven = H
Ven = L
Vi = L ; IO = 0 ; Ven = H
Vi = H ; IO = 0 ; Ven = H
Ven = L
VSS 7 V
VSS > 7 V
VIL = 1.5 V
2.3 V VIH VSS – 0.6 V
VSS 7 V
VSS > 7 V
Ven L = 1.5 V
2.3 V Ven H VSS – 0.6 V
IO = – 0.6 A
IO = + 0.6 A
IO = 600nA
0.1 to 0.9 VO
0.9 to 0.1 VO
0.5 Vi to 0.5 VO
0.5 Vi to 0.5 VO
Min.
VSS
4.5
– 0.3
Typ.
2
16
44
16
16
Max.
36
36
6
24
4
60
22
24
1.5
Unit
V
V
mA
mA
mA
mA
mA
mA
V
2.3 VSS V
2.3 7 V
– 10 µA
30 100 µA
– 0.3
1.5 V
2.3 VSS V
2.3 7 V
– 30 – 100 µA
± 10 µA
1.4 1.8
V
1.2 1.8
V
1.3 V
250 ns
250 ns
750 ns
200 ns
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L293D - L293DD
TRUTH TABLE (one channel)
Input
H
L
H
L
Enable (*)
H
H
L
L
Z = High output impedance
(*) Relative to the considered channel
Output
H
L
Z
Z
Figure 1: Switching Times
Figure 2: Junction to ambient thermal resistance vs. area on board heatsink (SO12+4+4 package)
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DIM.
MIN.
mm
TYP. MAX.
MIN.
inch
TYP. MAX.
a1 0.51
0.020
B 0.85
1.40 0.033
0.055
b 0.50
0.020
b1 0.38
0.50 0.015
0.020
D
20.0
0.787
E 8.80
0.346
e 2.54
0.100
e3 17.78
0.700
F
7.10
0.280
I
5.10
0.201
L 3.30
0.130
Z
1.27
0.050
L293D - L293DD
OUTLINE AND
MECHANICAL DATA
Powerdip 16
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L293D - L293DD
DIM.
MIN.
mm
TYP. MAX. MIN.
inch
TYP. MAX.
A 2.35
2.65 0.093
0.104
A1 0.1
0.3 0.004
0.012
B 0.33
0.51 0.013
0.020
C 0.23
0.32 0.009
0.013
D 12.6
13 0.496
0.512
E 7.4
7.6 0.291
0.299
e 1.27
0.050
H 10
10.65 0.394
0.419
h 0.25
0.75 0.010
0.030
L 0.4
1.27 0.016
0.050
K 0˚ (min.)8˚ (max.)
OUTLINE AND
MECHANICAL DATA
SO20
B
20
1
6/7
e
D
L
A
K
h x 45˚
A1
H
C
11
10
E
SO20MEC


L293DD Datasheet PDF
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L293D - L293DD
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2003 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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