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 FACI LITY
OVERTEMPERATURE PROTECTION
LOGICAL "0" INPUT VOLTAGE UP TO 1.5 V
(HIGH NOISE IM MUN ITY)
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 in put. A separate
supply input is provided for t he 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 k Hz .
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
®
BLOCK DIAGRAM
SO(12+4+4) Powerdip (12+2+2)
ORDERING NUMBERS:
L293DD L293D
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ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VSSupply Voltage 36 V
VSS Logic Supply Volta ge 36 V
ViInput Voltage 7 V
Ven Enable Voltage 7 V
IoPeak Output Current (100 µs non repetitive) 1.2 A
Ptot Total Power Dissipation at Tpins = 90 °C4W
T
stg, TjStorage and Junction Temperature – 40 to 150 °C
THERMAL DATA
Symbol Decription DIP SO Unit
Rth j-pins Thermal Resistance Junction-pins max. 14 °C/W
Rth j-amb Thermal Resistance junction-ambient max. 80 50 (*) °C/W
Rth j- case Thermal Resistance Junction-case max. 14
(* ) With 6sq. cm on board heats i nk.
PIN C ONNECTIONS (Top view)
SO(12+4+4) Powerdip(12+2+2)
L293D - L293DD
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ELECTRICAL CHARACTERISTICS (for each channel, VS = 24 V, VSS = 5 V, Tamb = 25 °C, unless
otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VSSupply Voltage (pin 10) VSS 36 V
VSS Logic Supply Voltage (pin 20) 4.5 36 V
ISTotal Quiescent Supply Current
(pin 10) Vi = L ; IO = 0 ; Ven = H 2 6 mA
Vi = H ; IO = 0 ; Ven = H 16 2 4 m A
Ven = L 4 mA
ISS Total Quiescent Logic Supply
Current (pin 20) Vi = L ; IO = 0 ; Ven = H 44 60 mA
Vi = H ; IO = 0 ; Ven = H 16 22 mA
Ven = L 16 24 mA
VIL Input Low Voltage (pin 2, 9, 12,
19) – 0.3 1.5 V
VIH Input High Voltage (pin 2, 9,
12, 19) VSS 7 V 2.3 VSS V
VSS > 7 V 2.3 7 V
IIL Low Voltage Input Current (pin
2, 9, 12, 19) VIL = 1.5 V – 10 µA
IIH High Voltage Input Current (pin
2, 9, 12, 19) 2.3 V VIH VSS – 0.6 V 30 100 µA
Ven L Enable Low Voltage
(pin 1, 11) – 0.3 1.5 V
Ven H Enable High Voltage
(pin 1, 11) VSS 7 V 2.3 VSS V
VSS > 7 V 2.3 7 V
Ien L Low Voltage Enable Current
(pin 1, 11) Ven L = 1.5 V – 30 – 100 µA
Ien H High Voltage Enable Current
(pin 1, 11) 2.3 V Ven H VSS – 0.6 V ± 10 µA
VCE(sat)H Source Output Saturation
Voltage (pins 3, 8, 13, 18) IO = – 0.6 A 1.4 1.8 V
VCE(sat)L Sink Output Saturation Voltage
(pins 3, 8, 13, 18) IO = + 0.6 A 1.2 1.8 V
VFClamp Diode Forward Voltage IO = 600nA 1.3 V
trRise Time (*) 0.1 to 0.9 VO250 ns
tfFall Time (*) 0.9 to 0.1 VO250 ns
ton Turn-on Delay (*) 0.5 Vi to 0.5 VO750 ns
toff Turn-off Delay (*) 0.5 Vi to 0.5 VO200 ns
(*) See fig. 1.
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TRUTH TABLE (one channel)
Input Enable (*) Output
H
L
H
L
H
H
L
L
H
L
Z
Z
Z = High output impedance
(*) Relative to the considered channel
Figure 1: Switching Times
Figure 2: Junction to ambient thermal resistance vs. area on board heatsink (SO12+4+4 package)
L293D - L293DD
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DIM. mm inch
MIN. TYP. MAX. MIN. 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
Powerdip 16
OUTLINE AND
MECHANICAL DATA
L293D - L293DD
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110
1120
A
e
B
D
E
L
KH
A1 C
SO20MEC
h x 45˚
SO20
DIM. mm inch
MIN. TYP. MAX. MIN. 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 (min.)8˚ (max.)
OUTLINE AND
MECHANICAL DATA
L293D - L293DD
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are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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