STMicroelectronics L293D Linear IC DP16 4 Canal-DRIVERS stepper motors L293D Data Sheet

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

®

  L293DD                                    L293D

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