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STMicroelectronics Electronic Components Datasheet

L293DD Datasheet

PUSH-PULL FOUR CHANNEL DRIVER

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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
1/7


STMicroelectronics Electronic Components Datasheet

L293DD Datasheet

PUSH-PULL FOUR CHANNEL DRIVER

No Preview Available !

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
2/7


Part Number L293DD
Description PUSH-PULL FOUR CHANNEL DRIVER
Maker STMicroelectronics
Total Page 7 Pages
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