FEATURES
Dual Channel Optocoupler
Convenient Plastic SOIC-8 Surface Mountable Package Style
Two channels in one compact surface mount package
Closely Matched Current Transfer Ratios to Minimize Unit-to-Unit Variation
Minimum V
(BR)CEO
of 70 Volts Guaranteed
Standard SOIC-8 Footprint, with 0.050" Lead Spacing
Compatible with Dual Wave, Vapor Phase and IR Reflow Soldering
High Input-Output Isolation of 2500 Vac (rms) Guaranteed
Meets U.L. Regulatory Requirements, File #E90700, Volume 2
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25C Unless otherwise specified)
DESCRIPTION
The MOCD207M/MOCD208M consist of two silicon phototransistors optically coupled to two
GaAs infrared LEDs. These devices are constructed in a small outline surface mount package
which conforms to the standard SOIC-8 footprint.
Rating
Symbol
Value
Unit
EMITTER
I
F
60
mA
Forward Current - Continuous
Forward Current - Peak (PW = 100 s, 120 pps)
I
F
(pk)
1.0
A
Reverse Voltage
V
R
6.0
V
LED Power Dissipation @ T
A
= 25C
P
D
90
mW
Derate above 25C
0.8
mW/C
DETECTOR
V
CEO
70
V
Collector-Emitter Voltage
Collector-Base Voltage
V
CBO
70
V
Emitter-Collector Voltage
V
ECO
7.0
V
Collector Current-Continuous
I
C
150
mA
Detector Power Dissipation @ T
A
= 25C
P
D
150
mW
Derate above 25C
1.76
mW/C
TOTAL DEVICE
Input-Output Isolation Voltage
(1,2)
V
ISO
2500
Vac(rms)
(f = 60 Hz, 1 min. Duration)
Total Device Power Dissipation @ T
A
= 25C
P
D
250
mW
Derate above 25C
2.94
mW/C
Ambient Operating Temperature Range
T
A
-45 to +100
C
Storage Temperature Range
T
stg
-45 to +125
C
Lead Soldering Temperature
T
L
260
C
(1/16" from case, 10 sec. duration)
MOCD207M
MOCD208M
EMITTER 1
COLLECTOR 1
ANODE 1
CATHODE 1
1
2
3
4
5
6
7
8
EMITTER 2
COLLECTOR 2
ANODE 2
CATHODE 2
DUAL CHANNEL PHOTOTRANSISTOR
SMALL OUTLINE SURFACE MOUNT
OPTOCOUPLERS
2001 Fairchild Semiconductor Corporation
DS300270
12/19/01
1 OF 6
www.fairchildsemi.com
APPLICATIONS
Feedback control circuits
Interfacing and coupling systems of different potentials and impedances
General purpose switching circuits
Monitor and detection circuits
Parameter
Test Conditions
Symbol
Device
Min
Typ**
Max
Unit
EMITTER
I
F
= 30 mA
V
F
All
--
1.25
1.55
V
Input Forward Voltage
Reverse Leakage Current
V
R
= 6.0 V
I
R
All
--
0.001
100
A
Capacitance
C
All
--
18
--
pF
DETECTOR
Collector-Emitter Dark Current
V
CE
= 10 V, T
A
= 25C
I
CEO
All
--
1.0
50
nA
V
CE
= 10 V, T
A
= 100C
I
CEO
All
--
1.0
--
A
Collector-Emitter Breakdown Voltage
I
C
= 100
A
V
(BR)CEO
All
70
100
--
V
Emitter-Collector Breakdown Voltage
I
E
= 100
A
V
(BR)ECO
All
7.0
10
--
V
Collector-Emitter Capacitance
f = 1.0 MHz, V
CE
= 0 V
C
CE
All
--
7.0
--
pF
COUPLED
I
F
= 10 mA, V
CE
= 5 V
MOCD207
100
150
200
Current Transfer Ratio,
CTR
MOCD208
40
--
125
Collector to Emitter
(4)
I
F
= 1 mA, V
CE
= 5 V
MOCD207
34
--
--
%
MOCD208
13
--
--
Collector-Emitter Saturation Voltage
I
C
= 2.0 mA, I
F
= 10 mA
V
CE (sat)
All
--
--
0.4
V
Turn-On Time
I
C
= 2.0 mA, V
CC
= 10 V, R
L
= 100
t
on
All
--
3.0
--
s
Turn-Off Time
I
C
= 2.0 mA, V
CC
= 10 V, R
L
= 100
t
off
All
--
2.8
--
s
Rise Time
I
C
= 2.0 mA, V
CC
= 10 V, R
L
= 100
t
r
All
--
1.6
--
s
Fall Time
I
C
= 2.0 mA, V
CC
= 10 V, R
L
= 100
t
f
All
--
2.2
--
s
Isolation Surge Voltage
(1,2)
f = 60 Hz, t = 1 min.
V
ISO
All
2500
--
--
Vac(rms)
Isolation Resistance
(2)
V
I-O
= 500 V
R
ISO
All
10
11
--
--
!
Isolation Capacitance
(2)
V
I-O
= 0 V, f = 1 MHz
C
ISO
All
--
0.2
--
pF
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise specified)
(3)
NOTE:
1. Input-Output Isolation Voltage, V
ISO
, is an internal device dielectric breakdown rating.
2. For this test, Pins 1, 2, 3 and 4 are common and Pins 5, 6, 7 and 8 are common.
3. Always design to the specified minimum/maximum electrical limits (where applicable).
4. Current Transfer Ratio (CTR) = I
C
/I
F
x 100%.
www.fairchildsemi.com
2 OF 6
12/19/01
DS300270
** Typical values at T
A
= 25C
MOCD207M
MOCD208M
DUAL CHANNEL PHOTOTRANSISTOR
SMALL OUTLINE SURFACE MOUNT
OPTOCOUPLERS
DS300270
12/19/01
3 OF 6
www.fairchildsemi.com
Fig. 2 Output Curent vs. Input Current
I
F
- LED INPUT CURRENT (mA)
0.1
1
10
100
I
C
-
O
U
TP
U
T
C
O
LL
E
C
TO
R
C
U
R
R
E
N
T
(
N
O
R
M
A
L
I
ZED
)
0.01
0.1
1
10
V
CE
= 5V
NORMALIZED TO I
F
= 10mA
Fig. 3 Output Current vs. Ambient Temperature
T
A
- AMBIENT TEMPERATURE (
o
C)
-80
-60
-40
-20
0
20
40
60
80
100
120
I
C
-
O
U
T
P
UT
C
O
L
L
E
C
T
O
R
C
U
R
R
EN
T
(
N
O
R
M
A
L
I
Z
E
D)
0.1
1
10
NORMALIZED TO T
A
= 25
o
C
Fig. 4 Output Current vs. Collector - Emitter Voltage
V
CE
- COLLECTOR -EMITTER VOLTAGE (V)
0
1
2
3
4
5
6
7
8
9
10
I
C
-
O
U
T
P
UT
CO
L
L
EC
T
O
R
C
U
R
R
EN
T
(
N
O
R
M
A
L
I
Z
E
D)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
I
F
= 10mA
NORMALIZED TO V
CE
= 5V
Fig. 5 Dark Current vs. Ambient Temperature
T
A
- AMBIENT TEMPERATURE (
o
C)
0
20
40
60
80
100
I
CE
O
-
CO
L
L
E
C
T
O
R -
E
M
I
T
T
E
R
D
A
RK
CU
RR
E
N
T
(
n
A
)
0.1
1
10
100
1000
10000
V
CE
=10V
I
F
- LED FORWARD CURRENT (mA)
V
F
- FORWARD VOLTAGE (V)
Fig. 1 LED Forward Voltage vs. Forward Current
1
10
100
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
T
A
= 55 C
T
A
= 25 C
T
A
= 100 C
MOCD207M
MOCD208M
DUAL CHANNEL PHOTOTRANSISTOR
SMALL OUTLINE SURFACE MOUNT
OPTOCOUPLERS
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