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L293D Datasheet(Fiches technique) 1 Page - STMicroelectronics

Numéro de pièce L293D
Description  PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES
Télécharger  7 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
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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.
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
1/7




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