L293D_03 Datasheet, PDF (1/7 Pages) STMicroelectronics – PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES

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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