L9222

October 1990

QUAD INVERTING TRANSISTOR SWITCH

.

OUTPUT VOLTAGE TO 50V

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OUTPUT CURRENT TO 1.2A

.

VERY LOW SATURATION VOLTAGE

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TTL COMPATIBLE INPUTS

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INTEGRAL SUPPRESSION DIODE

Powerdip (12+2+2)

ORDERING NUMBER : L9222

DESCRIPTION

The L9222 monolithic quad transistor switch is de-

signed for high current, high voltage switching appli-

cations.

Each of the four switches is controlled by a logic in-

put and all four are controlled by a common enable

input. All inputs are TTL-compatible for direct con-

nection to logic circuits. Each switch consists of an

open-collector transistor plus a clamp diode for ap-

plications with inductive loads.

The emitters of the four switches are connected to-

gether to GND. The switches of the same device

may be paralled. The device is intended to drive

coilssuch as relays, solenoids,unipolar steppermo-

tors, LED etc.

BLOCK DIAGRAM

1/5