L293DD Datasheet

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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 鈥?鈥?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.

June 1996

1/7

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