LOC112 is a linear optocoupler for use in telecom, med-
ical and power supply isolation circuits. They are available
in 8 pin DIP, surface mount or flatpack packages.
Applications
•
Modem Transformer Replacement With No
Insertion Loss
•
Digital Telephone Isolation
•
Power Supply Feedback Voltage/Current
•
Medical Sensor Isolation
•
Audio Signal Interfacing
•
Isolation of Process Control Transducers
Approvals
•
UL Recognized: File Number E76270
•
CSA Certified: File Number LR 43639-10
•
BSI Certified:
•
BS EN 60950:1992 (BS7002:1992)
Certificate #:7344
•
BS EN 41003:1993
Certificate #:7344
Ordering Information
Part #
LOC112
LOC112P
LOC112PTR
LOC112S
LOC112STR
Description
8 Pin DIP (50/Tube)
8 Pin Flatpack (50/Tube)
8 Pin Flatpack (1000/Reel)
8 Pin Surface Mount (50/Tube)
8 Pin Surface Mount (1000/Reel)
Pin Configuration
LOC112 Pinout
1
2
3
4
8
7
6
5
Ð LED
+ LED
+V
cc1
I
1
NC
NC
+V
cc2
I
2
DS-LOC112-R2
www.clare.com
1
LOC112
Absolute Maximum Ratings (@ 25
o
C)
Parameter
Input Power Dissipation
Input Control Current
Peak (10ms)
Total Package Dissipation
Isolation Voltage
Input to Output
SOIC Package
Operational Temperature
Storage Temperature
Soldering Temperature
(10 Seconds Max)
Flatpack Package
1
2
Min
-
-
-
-
Typ Max Units
-
-
-
-
150
1
100
1
800
2
mW
mA
A
mW
Absolute Maximum Ratings are stress ratings. Functional
operation of the device at these or any other conditions
beyond those indicated in the operational 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.
3750
-40
-40
-
-
-
-
-
-
-
V
RMS
°
C
+85
+125
°
C
+220
°
C
+260
°
C
Derate Linearly 1.33 mW/
°
C
Derate Linearly 6.67 mW/
°
C
Electrical Characteristics
PARAMETER
Input Characteristics @ 25°C1
LED Voltage Drop
Reverse LED Current
Reverse LED Voltage
Forward LED Current
Coupler/Detector
Characteristics @ 25°C
Dark Current
K1, Servo Gain (I
1
/I
F
)
K2, Forward Gain (I
2
/I
F
)
K3, Transfer Gain (K
2
/K
1
)
1
∆K3,
Transfer Gain Linearity
1
(non-servoed)
K3 Temperature Coefficient
Common Mode
Rejection Ratio
Total Harmonic Distortion
Frequency Response
CONDITIONS
I
F
=2-10mA
V
R
=5V
-
-
SYMBOL
V
F
I
R
V
R
I
F
MIN
0.9
-
-
-
TYP
1.2
-
-
-
MAX
1.4
10
5
100
UNITS
V
µA
V
mA
I
F
=0mA, V
CC
=15V
I
F
=2-10mA, V
CC
=15V
I
F
=2-10mA, V
CC
=15V
I
F
=2-10mA, V
CC
=15V
I
F
=2-10mA
I
F
=2-10mA, V
det
=-5V
V=20V
P-P
, R
L
=2KΩ,
F=100Hz
F
O
=350Hz, 0dBm
Photoconductive
Operation
Photovoltaic
Operation
-
I
D
K1
K2
K3
∆K3
∆K3/∆T
CMRR
THD
BW
(-3dB)
BW
(-3dB)
C
I/O
V
I/O
-
0.004
0.004
0.733
-
-
-
-96
-
1
0.007
0.007
1.0
-
0.005
130
-87
200
40
25
0.030
0.030
1.072
1.0
-
-
-80
-
-
-
-
nA
-
-
-%
%/
°
C
dB
dB
kHz
kHz
pF
V
RMS
Input/Output Capacitance
Input/Output Isolation
1
LOC111
-
3750
3
-
and LOC112 Bins D,E,F,G.
K3 Sorted Bins
Bin A
Bin B
Bin C
Bin D
Bin E
Bin F
Bin G
Bin H
Bin I
Bin J
=
=
=
=
=
=
=
=
=
=
0.550-0.605
0.606-0.667
0.668-0.732
0.733-0.805
0.806-0.886
0.887-0.974
0.975-1.072
1.073-1.179
1.180-1.297
1.298-1.426
•
•
•
•
The LOC110/LOC111/LOC112 are shipped in anti-static tubes of 50
pieces. Each tube will contain one K3 sorted bin.
Bin designation marked on each device (A-J).
Orders for the LOC110 product will be shipped using bins available at
the date of the order. Any bin (A-J) can be shipped.
For customers requiring selected bins D E F G we offer part num-
bers LOC111 or LOC112.
2
www.clare.com
Rev. 2
LOC112
Performance Data
LOC112
LED Current (I
F
) vs.
LED Forward Voltage (V
F
)
35
100
LOC112
LED Current (I
F
) vs.
LED Forward Voltage (V
F
)
0.014
0.012
LOC112
Servo Gain vs.
LED Current & Temperature
0°C
25°C
50°C
70°C
85°C
30
LED Current (mA)
25
LED Current (mA)
Servo Gain
20
15
10
10
0.010
0.008
0.006
0.004
1
5
0
1
1.1
1.2
1.3
1.4
0.1
1
1.1
1.2
1.3
1.4
0.002
0
0
2
4
6
8
10
12
LED Forward Voltage (V)
LED Forward Voltage (V)
LED Current (mA)
Normalized Servo-Photocurrent
"
Servo-Photocurrent (µA)
LOC112
Servo-Photocurrent vs.
LED Current & Temperature
0°C
25°C
50°C
70°C
85°C
1.4
1.2
LOC112
Normalized Servo-Photocurrent vs.
LED Current & Temperature
0°C
25°C
50°C
70°C
85°C
LED Forward Voltage Drop (V)
1.7
1.6
1.5
1.4
1.3
1.2
LOC112
Typical LED Forward Voltage Drop vs.
Temperature
&
$
"
"
$
&
1.0
0.8
0.6
0.4
20mA
10mA
5mA
1.1
1.0
0.9
-40
-15
10
35
60
85
0.2
0
0
2
4
6
8
10
12
LED Current (mA)
LED Current (mA)
Temperature (°C)
*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.
Rev. 2
www.clare.com
3
LOC112
Mechanical Dimensions
8 Pin DIP Through Hole (Standard)
7.620
±
.254
(.300
±
.010)
3.302
(.130)
9.144 TYP.
(.360)
6.350
±
.127
(.250
±
.005)
9.652
±
.381
(.380
±
.015)
2.540
±
.127
(.100
±
.005)
PC Board Pattern
(Top View)
2.540
±
.127
8-.800 DIA. (.100
±
.005)
(8-.031 DIA.)
7.620
±
.127
(.300
±
.005)
7.239 TYP.
(.285)
9.144
±
.508
(.360
±
.020)
6.350
±
.127
(.250
±
.005)
.457
±
.076
(.018
±
.003)
8.077
±
.127
(.318
±
.005 )
7.620
±
.127
(.300
±
.005)
8 Pin Flatpack (“P” Suffix)
9.652
±
.381
(.380
±
.015)
2.540
±
.127
(.100
±
.005)
PC Board Pattern
(Top View)
2.540
±
.127
(.100
±
.005)
9.398
±
.127
(.370
±
.005)
2.159 TYP.
(.085)
7.620
±
.254
(.300
±
.010)
6.350
±
.127
(.250
±
.005)
.203
(.008)
.457
±
.076
(.018
±
.003)
8.077
±
.127
(.318
±
.005)
1.193
(.047)
2.286 MAX.
.635
±
.127
(.090)
(.025)
8.763
±
.127
(.345
±
.005)
.787
(.031)
8 Pin DIP Surface Mount (“S” Suffix)
7.620
±
.254
(.300
±
.010)
4.445
±
.127
(.175
±
.005)
3.302
(.130)
.635 TYP.
(.025)
.254 TYP.
(.010)
6.350
±
.127
(.250
±
.005)
9.652
±
.381
(.380
±
.015)
2.540
±
.127
(.100
±
.005)
PC Board Pattern
(Top View)
2.540
±
.127
(.100
±
.005)
9.525
±
.254
(.375
±
.010)
1.905
±
.127
(.075
±
.005)
.457
±
.076
(.018
±
.003)
8.077
±
.127
(.318
±
.005)
1.498
±
.127
(.059
±
.005)
8.305
±
.127
(.327
±
.005)
Dimensions
mm
(inches)
4
www.clare.com
Rev. 2
CPC7581
Mechanical Dimensions
Tape and Reel Packaging for 8 Pin Flatpack Package
330.2 DIA.
(13.00)
2.007
±
.102 1.498
±
.102 3.987
±
.102
(.079
±
.004) (.059
±
.004) (.157
±
.004)
Top Cover
Tape Thickness
.102 MAX.
(.004)
6.731 MAX.
1.753
±
0.102
(.265)
(.069
±
.004)
.406 MAX.
(.016)
7.493
±
.102
(.295
±
.004)
1
8
16.002
±
.305
(.630
±
.012)
10.287
(.405)
12.090
(.476)
4.877
(.192)
Embossed Carrier
Top Cover
Tape
.050R TYP.
11.988
±
.102
(.472
±
.004)
User Direction of Feed
10.287
±
.102
(.405
±
.004)
1.549
±
.102
(.061
±
.004)
Embossment
Tape and Reel Packaging for 8 Pin Surface Mount Package
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