1
www.clare.com
LCA220
DS-LCA220-R6
LCA220 is a common input 1- Form 2A solid state relay
which has two independent optically couple MOSFETs
controlled by a common input signal. The efficient MOS-
FET switches and photovoltaic die use Clare's patented
OptoMOS architecture to provide 3750 V
RMS
of input to
output isolation. The optically coupled input is controlled
by highly efficient GaAIAs infrared LEDs. Common input
OptoMOS relays can replace standard dual pole relays in
a variety of applications. The common input relay elimi-
nates the need to make an external circuit connection
when both poles are controlled by a common signal.
Telecommunications
Telecom Switching
Tip/Ring Circuits
Modem Switching (Laptop, Notebook, Pocket Size)
Hookswitch
Dial Pulsing
Ground Start
Ringer Injection
Instrumentation
Multiplexers
Data Acquisition
Electronic Switching
I/O Subsystems
Meters (Watt-Hour, Water, Gas)
Medical Equipment-Patient/Equipment Isolation
Security
Aerospace
Industrial Controls
UL Recognized: File Number E76270
CSA Certified: File Number LR 43639-10
BSI Certified to:
BS EN 60950:1992 (BS7002:1992)
Certificate #: 7344
BS EN 41003:1993
Certificate #: 7344
Small 8 Pin DIP Package
Low Drive Power Requirements (TTL/CMOS
Compatible)
No Moving Parts
High Reliability
Arc-Free With No Snubbing Circuits
3750V
RMS
Input/Output Isolation
FCC Compatible
VDE Compatible
No EMI/RFI Generation
Machine Insertable, Wave Solderable
Surface Mount and Tape & Reel Versions Available
Applications
Features
Description
Approvals
Commom Input OptoMOS
Relays
Ordering Information
Part #
Description
LCA220
8 Pin DIP (50/Tube)
LCA220S
8 Pin Surface Mount (50/Tube)
LCA220STR
8 Pin Surface Mount (1,000/Reel)
LCA220
Units
Load Voltage
250
V
Load Current
120
mA
Max R
ON
20
Pin Configuration
CONTROL
LOAD
10ms
10%
10%
90%
+
T
ON
T
OFF
+
+
Switching Characteristics of
Normally Open (Form A) Devices
1
2
3
4
8
7
6
5
+ Control
Control
Load - Switch #1
Load - Switch #1
Load - Switch #2
Load - Switch #2
LCA220 Pinout
NC
NC
www.clare.com
LCA220
Rev. 6
Electrical Characteristics
Absolute Maximum Ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at these or
any other conditions beyond those indicated in the opera-
tional sections of this data sheet is not implied. Exposure
of the device to the absolute maximum ratings for an
extended period may degrade the device and effect its
reliability.
Absolute Maximum Ratings (@ 25 C)
2
Parameter
Conditions
Symbol
Min
Typ
Max
Units
Output Characteristics @ 25C
Load Voltage (Peak)
-
V
L
-
-
250
V
Load Current (Continuous)
-
I
L
-
-
120
mA
Peak Load Current
10ms max
I
LPK
-
-
340
mA
On-Resistance
I
L
=120 mA
R
ON
-
-
20
W
Off-State Leakage Current
V
L
=250V
I
LEAK
-
-
1
mA
Switching Speeds
Turn-On
I
F
=10mA, V
L
=10V
T
ON
-
-
5
mS
Turn-Off
I
F
=10mA, V
L
=10V
T
OFF
-
-
5
mS
Output Capacitance
50V; f=1MHz
C
OUT
-
50
-
pF
*Input Characteristics @ 25C
Input Control Current
I
L
=120mA
I
F
10
-
100
mA
Input Dropout Current
-
-
0.8
1.4
-
mA
Input Voltage Drop
I
F
=10mA
V
F
0.9
1.2
1.4
V
Reverse Input Voltage
-
V
R
-
-
5
V
Reverse Input Current
V
R
=5V
I
R
-
-
20
mA
Input to Output Capacitance
-
C
I/O
-
3
-
pF
Input to Output Isolation
-
V
I/O
3750
-
-
V
RMS
*Input characteristics represent requirements of two parallel connected LEDs.
Parameter
Min
Typ
Max Units
Input Power Dissipation
-
-
150
1
mW
Input Control Current
-
-
100
mA
Peak (10ms)
-
-
1
A
Reverse Input Voltage
-
-
5
V
Total Power Dissipation
-
-
800
2
mW
Isolation Voltage
Input to Output
3750
-
-
V
RMS
Operational Temperature
-40
-
+85
C
Storage Temperature
-40
-
+125
C
Soldering Temperature
DIP Package
-
-
+260
C
Flatpack/Surface Mount
Package
-
-
+220
C
(10 Seconds Max.)
1
Derate Linearly 1.33 mw/C
2
Derate Linearly 6.67 mw/C
LCA220
www.clare.com
Rev. 6
PERFORMANCE DATA*
The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications, please contact
our application department.
3
LCA220
Typical LED Forward Voltage Drop
(N=50 Ambient Temperature = 25
C)
I
F
= 10mADC
35
30
25
20
15
10
5
0
1.17
1.19
1.21
1.23
1.25
LED Forward Voltage Drop (V)
Device Count (N)
LCA220
Typical Blocking Voltage Distribution
(N=50 Ambient Temperature = 25
C)
#
#
#
"
"
"
"!
Blocking Voltage (V)
Device Count (N)
!'
""
LCA220
Typical I
F
for Switch Operation
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC)
LED Current (mA)
Device Count (N)
25
20
15
10
5
0
1.08
1.56
1.80
0.84
0.60
1.32
LCA220
Typical I
F
for Switch Dropout
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC)
25
20
15
10
5
0
0.60
0.80
1.0
0.50
0.70
0.90
LED Current (mA)
Device Count (N)
LCA220
Typical Turn-On Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC; I
F
= 10mADC)
1.6
1.7
1.8
1.9
2.0
2.1
2.2
Turn-On (ms)
Device Count (N)
25
20
15
10
5
0
LCA220
Typical Turn-Off Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC; I
F
= 10mADC)
0.30
0.50
0.70
0.20
0.40
0.60
0.80
Turn-Off (ms)
Device Count (N)
25
20
15
10
5
0
LCA220
Typical Load Current vs. Temperature
Temperature (
C)
Load Current (mA)
200
175
150
125
100
75
0
-40 -20
0
20
40
60
80
120
100
20mA
10mA
LCA220
Typical Leakage vs. Temperature
(Measured across Pins 5 & 6 or 7 & 8)
Temperature (
C)
Leakage (
A)
-40
0.100
0.090
0.080
0.070
0.060
0.050
0.040
0.030
0.020
0.010
0
-20
0
20
40
60
80
100
LCA220
Typical Blocking Voltage
vs. Temperature
Temperature (
C)
Blocking Voltage (V
RMS
)
-40
340
335
330
325
320
315
310
305
-20
0
20
40
60
80
100
LCA220
Typical Turn-On vs. Temperature
(Load Current = 80mADC)
Temperature (
C)
10mA
20mA
Turn-On (ms)
-40
3.0
2.5
2.0
1.5
1.0
0.5
0
-20
0
20
40
60
80
100
LCA220
Typical On-Resistance Distribution
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC; I
F
= 10mADC)
30
25
20
15
10
5
0
8.25
12.5
12.7
12.9
10.25
On-Resistance (
)
Device Count (N)
LCA220
Typical Turn-Off vs. Temperature
(Load Current = 80mADC)
Temperature (
C)
Turn-Off (ms)
-40
0.60
0.50
0.40
0.30
0.20
0.10
0
-20
0
20
40
60
80
100
10mA
www.clare.com
4
LCA220
Rev. 6
PERFORMANCE DATA*
*The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications, please contact
our application department.
LCA220
Typical LED Forward Voltage Drop
vs. Temperature
Temperature (
C)
LED Forward Voltage Drop (V)
1.8
1.6
1.4
1.2
1.0
0.8
-40 -20
0
20
40
60
80
120
100
50mA
30mA
20mA
10mA
LCA220
Typical Turn-On vs. LED Forward Current
(Load Current = 120mADC)
LED Forward Current (mA)
Turn-On (ms)
5
10 15 20 25 30 35 40 45
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50 55
LCA220
Typical Turn-Off vs. LED Forward Current
(Load Current = 120mADC)
LED Forward Current (mA)
Turn-Off (ms)
5
10 15 20 25 30 35 40 45
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0
50 55
LCA220
Typical On-Resistance vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
On-Resistance (
)
-40
20
18
16
14
12
10
0
-20
0
20
40
60
80
100
10mA
10mA
20mA
Instantaneous
LCA220
Typical I
F
for Switch Operation
vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
LED Current (mA)
-40
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
-20
0
20
40
60
80
100
LCA220
Typical I
F
for Switch Dropout
vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
LED Current (mA)
-40
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-20
0
20
40
60
80
100
LCA220
Typical Load Current vs. Load Voltage
(Ambient Temperature = 25
C)
I
F
= 10mADC
Load Voltage (V)
Load Current (mA)
200
150
100
50
0
-50
-100
-150
-200
-2.0 -1.5 -1.25 -0.625 0 0.625 1.25 1.875 3.0
LCA220
Energy Rating Curve
Time
Load Current (A)
1.2
1.0
0.8
0.6
0.4
0.2
0
10s
1ms
100ms
10s
100s
10ms
1s
100s
LCA220
www.clare.com
5
Rev. 6
Dimensions
mm
(inches)
Mechanical Dimensions
PC Board Pattern
(Top View)
6.350
.127
(.250
.005)
2.540
.127
(.100
.005)
7.620
.127
(.300
.005)
7.620
.127
(.300
.005)
8-.800 DIA.
(8-.031 DIA.)
7.239 TYP.
(.285)
3.302
(.130)
7.620
.254
(.300
.010)
9.144 TYP.
(.360)
6.350
.127
(.250
.005)
9.652
.381
(.380
.015)
2.540
.127
(.100
.005)
9.144
.508
(.360
.020)
.457
.076
(.018
.003)
8.077
.127
(.318
.005 )
8 Pin DIP Through Hole (Standard)
4.445
.127
(.175
.005)
3.302
(.130)
7.620
.254
(.300
.010)
6.350
.127
(.250
.005)
8.077
.127
(.318
.005)
2.540
.127
(.100
.005)
9.525
.254
(.375
.010)
.457
.076
(.018
.003)
.254 TYP.
(.010)
.635 TYP.
(.025)
8 Pin DIP Surface Mount ("S" Suffix)
9.652
.381
(.380
.015)
PC Board Pattern
(Top View)
2.540
.127
(.100
.005)
8.305
.127
(.327
.005)
1.905
.127
(.075
.005)
1.498
.127
(.059
.005)
Tape and Reel Packaging for 8 Pin Surface Mount Package
7.493
.102
(.295
.004)
12.090
(.476)
1.753
.102
(.069
.004)
3.987
.102
(.157
.004)
1.498
.102
(.059
.004)
6.731 MAX.
(.265)
.406 MAX.
(.016)
4.877
(.192)
Top Cover
Tape
2.007
.102
(.079
.004)
11.989
.102
(.472
.004)
User Direction of Feed
.050R TYP.
16.002
.305
(.630
.012)
10.300
(.405)
Embossment
Embossed Carrier
Top Cover
Tape Thickness
.102 MAX.
(.004)
10.300
.102
(.405
.004)
1.549
.102
(.061
.004)
330.2 DIA.
(13.00)
1
8
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