L6221C_03 Datasheet, PDF (1/15 Pages) STMicroelectronics – QUAD DARLINGTON SWITCH

®
L6221C
. FOUR NON INVERTING INPUTS WITH
ENABLE
. OUTPUT VOLTAGE UP TO 60 V
. OUTPUT CURRENT UP TO 1.8 A
. VERY LOW SATURATION VOLTAGE
. TTL COMPATIBLE INPUTS
. INTEGRAL FAST RECIRCULATION DIODES
QUAD DARLINGTON SWITCH
Multiwatt 15
Powerdip 12 + 2 + 2
DESCRIPTION
The L6221 monolithic quad darlington switch is de-
signed for high current, high voltage switching appli-
cations. Each of the four switches is controlled by a
logic input and all four are controlled by a common
enable input. All inputs are TTL-compatible for direct
connection to logic circuits.
Each switch consists of an open-collector darlington
transistor plus a fast diode for switching applications
with inductive device loads. The emitters of the four-
switches are commoned. Any number of inputs and
BLOCK DIAGRAM
SO16 + 2 + 2
ORDERING NUMBERS :L6221C (Powerdip 12+2+2)
L6221CN (Multiwatt 15 )
L6221CD (SO16+2+2)
outputs of the same device may be paralleled.
Three versions are available : the L6221C mounted
in a Powerdip 12 + 2 + 2 package and the L6221CN
mounted in a 15--lead Multiwatt package, the
L6221CD in SO16+2+2 package.
July 2003
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