L6221A Datasheet, PDF (1/15 Pages) STMicroelectronics – QUAD DARLINGTON SWITCH

L6221A L6221AD
®
L6221N
. FOUR NON INVERTING INPUTS WITH
ENABLE
. OUTPUT VOLTAGE UP TO 50 V
. OUTPUT CURRENT UP TO 1.8 A
. VERY LOW SATURATION VOLTAGE
. TTL COMPATIBLE INPUTS
. INTEGRAL FAST RECIRCULATION DIODES
DESCRIPTION
The L6221 monolithic quad darlington switch is de-
signedfor high current, high voltageswitching appli-
cations. Each of the four switches is controlled by a
logic input and all four are controlled by a common
enableinput.All inputsareTTL-compatiblefor direct
connection to logic circuits.
Eachswitch consists of an open-collectordarlington
transistor plus a fast diodefor switchingapplications
with inductive device loads. The emitters of the four
switches are commoned. Any number of inputsand
outputs of the same device may be paralleled.
QUAD DARLINGTON SWITCH
Powerdip 12 + 2 + 2
Multiwatt 15
SO16+2+2
ORDERING NUMBERS:
L6221A (Powerdip)
L6221N (Multiwatt15)
L6221AD (SO16+2+2)
BLOCK DIAGRAM
July 1998
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