L294(1991) Просмотр технического описания (PDF) - STMicroelectronics

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L294
(Rev.:1991)

SWITCH-MODE SOLENOID DRIVER

STMicroelectronics 

L294

SWITCH-MODE SOLENOID DRIVER

HIGH VOLTAGE OPERATION (UP TO 50V)

HIGH OUTPUT CURRENT CAPABILITY (UP TO 4A)

LOW SATURATION VOLTAGE

TTL-COMPATIBLE INPUT

OUTPUT SHORT CIRCUIT PROTECTION (TO

GROUND, TO SUPPLY AND ACROSS THE

LOAD)

THERMAL SHUTDOWN

OVERDRIVING PROTECTION

LATCHED DIAGNOSTIC OUTPUT

Multiwatt 11

ORDER CODE : L294

DESCRIPTION

The L294 is a monolithic switched mode solenoid

driver designed for fast, high current applications

such as hummer and needle driving in printers and

electronic typewriters. Power dissipation is re-

duced by efficient switchmode operation. An extra

BLOCK DIAGRAM

feature of the L294 is a latched diagnostic output

which indicates when the output is short circuited.

The L294 is supplied in a 11-lead Multiwatt® plas-

tic power package.

October 1991

1/8

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