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STMicroelectronics |
L6220
L6220N
QUAD DARLINGTON SWITCHES
. TWO NON INVERTING + TWO INVERTING IN-
PUTS WITH INHIBIT
. OUTPUT VOLTAGE UP TO 50V
. OUTPUT CURRENT UP TO 1.8A
. VERY LOW SATURATION VOLTAGE
. TTL COMPATIBLE INPUTS
. INTEGRAL FAST RECIRCULATION DIODES
DES CRI P TI O N
The L6220 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
inhibit 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 loads. The emitters of the four
switches are commoned. Any number of inputs and
outputs of the same device may be paralleled.
Two versions are available : the L6220 mounted in
a Powerdip 12 + 2 + 2 package and the L6220N
mounted in a 15-lead Multiwatt package.
Powerdip 12 + 2 + 2
(Plastic Package)
ORDERING NUMBER : L6220
Multiwatt 15
(Plastic Package)
ORDERING NUMBER : L6220N
PIN CONNECTIONS (top views)
L6220 (Powerdip)
L6220N (Multiwatt-15)
April 1993
1/12
L6220 - L6220N
PIN FUNCTIONS (see block diagram)
Name
IN 1
IN 2
OUT 1
OUT 2
CLAMP A
IN 3
IN 4
OUT 3
OUT 4
CLAMP B
INHIBIT
Vs
GND
Input to Driver 1
Input to Driver 2
Output of Driver 1
Output of Driver 2
Diode Clamp to Driver 1 and Driver 2
Input to Driver 3
Input to Driver 4
Output of Driver 3
Output of Driver 4
Diode Clamp to Driver 3 and Driver 4
Inhibit Input to all Drivers
Logic Supply Voltage
Common Ground
BLOCK DIAGRAM
Function
TRUTH TABLE
Inhibit
L
L
H
Input 1, 4
H
L
X
For each input : H = High level
L = Low level
2/12
Power Out
ON
OFF
OFF
Inh ibit
L
L
H
Inputs 2, 3
L
H
X
Power Out
ON
OFF
OFF
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