CNY74-2H, CNY74-4H
Vishay Semiconductors
Optocoupler, Phototransistor Output (Multichannel)
FEATURES
Dual Channel
A
C
C
A
1
2
3
4
8
E
7 C
6 C
5 E
• CNY74-2H, CNY74-4H TTL compatible
• Transfer ratio, 35 % typical
• Coupling capacitance, 0.5 pF
• Dual and quad channel
• Industry standard DIP packages
• Compliant to RoHS directive 2002/95/EC and
in accordance to WEEE 2002/96/EC
A
1
2
3
4
5
6
7
8
16
E
15
C
14
C
13
E
12
E
11
C
10
C
9
E
Quad Channel
C
C
A
A
C
C
AGENCY APPROVALS
• UL1577, file no. E52744 system code H, double protection
• UL1577, file no. E52744, equivalent to CSA bulletin 5A
i179015-1
A
i179015-2
DESCRIPTION
The CNY74-2H, CNY74-4H is an optically coupled pair with
a GaAIAs infrared LED and a silicon NPN phototransistor.
Signal information, including a DC level, can be transmitted
by the device while maintaining a high degree of electrical
isolation between input and output.
The CNY74-2H, CNY74-4H is especially for driving
medium-speed logic, where it may be used to eliminate
troublesome ground loop and noise problems. Also it can be
used to replace relays and transformers in many digital
interface applications, as well as analog applications such as
CTR modulation.
The CNY74-2H has two isolated channels in a single DIP
package; the CNY74-4H has four isolated channels per
package.
ORDER INFORMATION
PART
CNY74-2H
CNY74-4H
REMARKS
CTR 50 % to 600 %, dual channel DIP-8
CTR 50 % to 600 %, quad channel DIP-16
ABSOLUTE MAXIMUM RATINGS
PARAMETER
INPUT
Peak reverse voltage
Forward continuous current
Power dissipation
Derate linearly from 55 %
V
R
I
F
P
diss
3
60
100
1.33
V
mA
mW
mW/°C
TEST CONDITION
PART
SYMBOL
VALUE
UNIT
Document Number: 83526
Rev. 1.9, 20-Oct-09
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
1
CNY74-2H, CNY74-4H
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Multichannel)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
OUTPUT
Collector emitter breakdown voltage
Emitter collector breakdown voltage
Power dissipation
Derate linearly from 25 °C
COUPLER
Isolation test voltage
Isolation resistance
Total package dissipation
Derate linearly from 25 °C
Creepage distance
Clearance distance
Storage temperature
Operating temperature
Lead soldering time at 260 °C
T
stg
T
amb
t=1s
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
CNY74-2H
CNY74-4H
CNY74-2H
CNY74-4H
TEST CONDITION
PART
SYMBOL
BV
CEO
BV
ECO
P
diss
VALUE
70
7
150
2
5300
≥
10
12
≥
10
11
400
500
5.33
6.67
≥
7
≥
7
- 55 to + 150
- 55 to + 100
10
UNIT
V
V
mW
mW/°C
V
RMS
Ω
Ω
mW
mW
mW/°C
mW/°C
mm
mm
°C
°C
s
V
ISO
R
IO
R
IO
P
tot
P
tot
Note
T
amb
= 25 °C, unless otherwise specified.
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied
at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum ratings for
extended periods of the time can adversely affect reliability.
ELECTRICAL CHARACTERISTICS
PARAMETER
INPUT
Forward voltage
Reverse current
Capacitance
OUTPUT
Collector emitter breakdown voltage
Collector emitter leakage current
Capacitance collector emitter
COUPLER
Saturation voltage, collector emitter
Resistance (input to output)
Capacitance (input to output)
I
C
= 2 mA, I
F
= 16 mA
V
CEsat
R
IO
C
IO
0.3
100
0.5
0.5
V
GΩ
pF
I
C
= 1 mA
V
CE
= 5 V, I
F
= 0 A
V
CE
= 0 V, f = 1 Hz
BV
CEO
I
CEO
C
CE
10
70
100
V
nA
pF
I
F
= 20 mA
V
R
= 3 V
V
R
= 0 V
V
F
I
R
C
O
1.3
0.1
25
1.5
100
V
µA
pF
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
Note
T
amb
= 25 °C, unless otherwise specified.
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluation. Typical values are for information only and are not part of the testing requirements.
CURRENT TRANSFER RATIO
PARAMETER
DC current transfer ratio
DC current transfer ratio
TEST CONDITION
I
F
= 5 mA, V
CE
= 5 V
I
F
= 10 mA, V
CE
= 5 V
SYMBOL
CTR
CTR
MIN.
50
60
TYP.
MAX.
600
UNIT
%
%
www.vishay.com
2
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83526
Rev. 1.9, 20-Oct-09
CNY74-2H, CNY74-4H
Optocoupler, Phototransistor Output
Vishay Semiconductors
(Multichannel)
SWITCHING CHARACTERISTICS
PARAMETER
Delay time
Rise time
Fall time
Storage time
Turn-on time
Turn-off time
Turn-on time
Turn-off time
TEST CONDITION
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 2 mA, R
L
= 100
Ω
(see figure 1)
V
S
= 5 V, I
C
= 10 mA, R
L
= 1 kΩ (see figure 2)
V
S
= 5 V, I
C
= 10 mA, R
L
= 1 kΩ (see figure 2)
SYMBOL
t
d
t
r
t
f
t
s
t
on
t
off
t
on
t
off
MIN.
TYP.
3
3
4.7
0.3
6
5
9
18
MAX.
UNIT
µs
µs
µs
µs
µs
µs
µs
µs
I
F
I
F
0
I
F
+5
V
I
C
= 2 mA; adjusted through
input amplitude
0
I
C
100
%
90
%
t
p
t
R
G
= 50
Ω
t
p
= 0.01
T
t
p
= 50
µs
Channel I
Channel II
50
Ω
95 10804
Oscilloscope
R
L
= 1 MΩ
C
L
= 20 pF
10
%
0
t
r
t
d
t
on
t
p
t
d
t
r
t
on
(= t
d
+ t
r
)
Pulse duration
Delay time
Rise time
Turn-on time
t
s
t
f
t
off
t
s
t
f
t
off
(= t
s
+ t
f
)
Storage time
Fall time
Turn-off time
96 11698
t
100
Ω
Fig. 1 - Test Circuit, Non-Saturated Operation
Fig. 3 - Switching Times
I
F
0
I
F
= 10 mA
+5
V
I
C
R
G
= 50
Ω
t
p
= 0.01
T
t
p
= 50
µs
Channel I
Channel II
50
Ω
95 10843
Oscilloscope
R
L
≥
1 MΩ
C
L
≤
20 pF
1 kΩ
Fig. 2 - Test Circuit, Saturated Operation
Document Number: 83526
Rev. 1.9, 20-Oct-09
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
3
CNY74-2H, CNY74-4H
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Multichannel)
TYPICAL CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
1.4
T
amb
= - 55 °C
1.2
1.1
1.0
0.9
0.8
0.7
0.1
iil74_01
1.5
N
CTR
-
Normalized
(CTR)
V
F
- Forward
Voltage
(V)
1.3
Normalized
to:
V
CE
= 10
V,I
F
= 10 mA
T
A
= 25 °C
1.0
CTR
ce(sat)
V
CE
= 0.4
V
T
A
= 70 °C
0.5
NCTR(SAT)
NCTR
0.0
T
amb
= 25 °C
T
amb
=
85
°C
1
10
100
iil74_04
0.1
1
10
100
I
F
- Forward Current (mA)
I
F
- LED Current (mA)
Fig. 4 - Forward Voltage vs. Forward Current
Fig. 7 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
1.5
1.5
N
CTR
-
Normalized
(CTR)
1.0
N
CTR
-
Normalized
CTR
Normalized
to:
V
CE
= 10
V,
I
F
= 10 mA
T
A
= 25 °C
CTR
ce(sat)
V
= 0.4
V
CE
Normalized
to:
V
CE
= 10
V,
I
F
= 10 mA, T
A
= 25 °C
CTR
ce(sat)
V
CE
= 0.4
V
1.0
T =
85
°C
A
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
iil74_02
I
F
- LED Current (mA)
iil74_05
I
F
- LED Current (mA)
Fig. 5 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 8 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
1.5
I
CE
- Collector Current (mA)
N
CTR
-
Normalized
(CTR)
Normalized
to:
V
CE
= 10
V,
I
F
= 10 mA, T
A
= 25 °C
CTR
ce(sat)
V
CE
= 0.4
V
T
A
= 50 °C
35
30
25
20
15
10
5
0
25 °C
85
°C
70 °C
50 °C
1.0
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
0
iil74_06
10
20
30
40
50
60
iil74_03
I
F
- LED Current (mA)
I
F
- LED Current (mA)
Fig. 6 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
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Fig. 9 - Collector Emitter Current vs. Temperature and LED Current
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83526
Rev. 1.9, 20-Oct-09
CNY74-2H, CNY74-4H
Optocoupler, Phototransistor Output
Vishay Semiconductors
(Multichannel)
10
5
4
10
I
CEO
- Collector Emitter (nA)
10
10
10
3
2
Normalized
Photcurrent
10
Normalized
to:
I
F
= 10 mA, T
A
= 25 °C
1
1
V
CE
= 10
V
Typical
10
0
10
10
-1
-2
0.1
- 20
iil74_07
0
20
40
60
80
100
0.01
0.1
iil74_10
NIb,
T
A
= - 20 °C
NIb,
T
A
= 25 °C
NIb,
T
A
= 50 °C
NIb,
T
A
= 70 °C
1
10
100
T
A
- Ambient Temperature (°C)
I
F
- LED Current (mA)
Fig. 10 - Collector Emitter Leakage Current vs.Temperature
Fig. 13 - Normalized Photocurrent vs. I
F
and Temperature
1.5
1.2
N
CTRcb
-
Normalized
CTRcb
Nh
FE
-
Normalized
(h
FE
)
1.0
Normalized
to:
I
F
= 10 mA
V
cb
= 9.3
V
T
A
= 25 °C
25 °C
70 °C
50 °C
1.0
25 °C
- 20 °C
0.8
Normalized
to:
I
b
= 20
µA
V
CE
= 10
V
T
a
= 25 °C
0.5
50 °C
0.0
0.1
1
10
100
70 °C
0.6
0.4
1
iil74_11
10
100
1000
iil74_08
I
F
- Current (mA)
I
b
- Base Current (µA)
Fig. 11 - Normalized CTR
cb
vs. LED Current and Temperature
Fig. 14 - Normalized Non-Saturated h
FE
vs. Base Current and
Temperature
1000
100
10
1
0.1
0.01
0.1
iil74_09
Nh
FE(sat)
-
Normalized
Saturated h
FE
1.5
T
A
= 25 °C
I
cb
= 1.0357 * I
F
^ 1.3631
I
cb
- Collector Base
Photocurrent (µA)
70 °C 50 °C
1.0
25 °C
- 20 °C
0.5
V
CE
= 0.4
V
0.0
1
Normalized
to:
V
CE
= 10
V
I
B
= 20
µA
T
A
= 25 °C
1
10
100
10
100
1000
I
F
- LED Current (mA)
iil74_12
I
b
- Base Current (µA)
Fig. 12 - Collector Base Photocurrent vs. LED Current
Fig. 15 - Normalized Saturated h
FE
vs. Base Current and
Temperature
Document Number: 83526
Rev. 1.9, 20-Oct-09
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
5
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