Document Number: 83526 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.9, 20-Oct-09 1
Optocoupler, Phototransistor Output (Multichannel)
CNY74-2H, CNY74-4H
Vishay Semiconductors
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.
FEATURES
• 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
AGENCY APPROVALS
• UL1577, file no. E52744 system code H, double protection
• UL1577, file no. E52744, equivalent to CSA bulletin 5A
i179015-2
1
2
3
4
8
7
6
5
E
C
C
E
A
C
C
A
A
C
C
A
A
C
C
A
E
C
C
E
E
C
C
E
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
i179015-1
Dual Channel
Quad Channel
ORDER INFORMATION
PART REMARKS
CNY74-2H CTR 50 % to 600 %, dual channel DIP-8
CNY74-4H CTR 50 % to 600 %, quad channel DIP-16
ABSOLUTE MAXIMUM RATINGS
PARAMETER TEST CONDITION PART SYMBOL VALUE UNIT
INPUT
Peak reverse voltage VR3V
Forward continuous current IF 60 mA
Power dissipation Pdiss 100 mW
Derate linearly from 55 % 1.33 mW/°C
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83526
2Rev. 1.9, 20-Oct-09
CNY74-2H, CNY74-4H
Vishay Semiconductors Optocoupler, Phototransistor Output
(Multichannel)
Note
Tamb = 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.
Note
Tamb = 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.
OUTPUT
Collector emitter breakdown voltage BVCEO 70 V
Emitter collector breakdown voltage BVECO 7V
Power dissipation Pdiss 150 mW
Derate linearly from 25 °C 2mW/°C
COUPLER
Isolation test voltage t = 1 s VISO 5300 VRMS
Isolation resistance VIO = 500 V, Tamb = 25 °C RIO ≥ 1012 Ω
VIO = 500 V, Tamb = 100 °C RIO ≥ 1011 Ω
Total package dissipation CNY74-2H Ptot 400 mW
CNY74-4H Ptot 500 mW
Derate linearly from 25 °C CNY74-2H 5.33 mW/°C
CNY74-4H 6.67 mW/°C
Creepage distance ≥ 7mm
Clearance distance ≥ 7mm
Storage temperature Tstg - 55 to + 150 °C
Operating temperature Tamb - 55 to + 100 °C
Lead soldering time at 260 °C 10 s
ABSOLUTE MAXIMUM RATINGS
PARAMETER TEST CONDITION PART SYMBOL VALUE UNIT
ELECTRICAL CHARACTERISTICS
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
INPUT
Forward voltage IF = 20 mA VF1.3 1.5 V
Reverse current VR = 3 V IR0.1 100 µA
Capacitance VR = 0 V CO25 pF
OUTPUT
Collector emitter breakdown voltage IC = 1 mA BVCEO 70 V
Collector emitter leakage current VCE = 5 V, IF = 0 A ICEO 100 nA
Capacitance collector emitter VCE = 0 V, f = 1 Hz CCE 10 pF
COUPLER
Saturation voltage, collector emitter IC = 2 mA, IF = 16 mA VCEsat 0.3 0.5 V
Resistance (input to output) RIO 100 GΩ
Capacitance (input to output) CIO 0.5 pF
CURRENT TRANSFER RATIO
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
DC current transfer ratio IF = 5 mA, VCE = 5 V CTR 50 600 %
DC current transfer ratio IF = 10 mA, VCE = 5 V CTR 60 %
Document Number: 83526 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.9, 20-Oct-09 3
CNY74-2H, CNY74-4H
Optocoupler, Phototransistor Output
(Multichannel) Vishay Semiconductors
Fig. 1 - Test Circuit, Non-Saturated Operation
Fig. 2 - Test Circuit, Saturated Operation
Fig. 3 - Switching Times
SWITCHING CHARACTERISTICS
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Delay time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) td3µs
Rise time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) tr3µs
Fall time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) tf4.7 µs
Storage time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) ts0.3 µs
Turn-on time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) ton 6µs
Turn-off time VS = 5 V, IC = 2 mA, RL = 100 Ω (see figure 1) toff 5µs
Turn-on time VS = 5 V, IC = 10 mA, RL = 1 kΩ (see figure 2) ton 9µs
Turn-off time VS = 5 V, IC = 10 mA, RL = 1 kΩ (see figure 2) toff 18 µs
Channel I
Channel II
95 10804
RG = 50 Ω
tp
tp = 50 µs
T= 0.01
+ 5 V
IF
0
50 Ω100 Ω
IF
IC = 2 mA; adjusted through
input amplitude
Oscilloscope
RL= 1 MΩ
CL= 20 pF
Channel I
Channel II
95 10843
RG= 50 Ω
tp
tp= 50 µs
T= 0.01
+ 5 V
IC
IF
0
50 Ω1 kΩ
IF= 10 mA
Oscilloscope
RL
≥
CL20 pF
1 MΩ
≤
tpt
t
0
0
10 %
90 %
100 %
tr
td
ton
tstf
toff
IF
IC
tpPulse duration
tdDelay time
trRise time
ton (= td + tr) Turn-on time
tsStorage time
tfFall time
toff (= ts + tf)Turn-off time
96 11698
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83526
4Rev. 1.9, 20-Oct-09
CNY74-2H, CNY74-4H
Vishay Semiconductors Optocoupler, Phototransistor Output
(Multichannel)
TYPICAL CHARACTERISTICS
Tamb = 25 °C, unless otherwise specified
Fig. 4 - Forward Voltage vs. Forward Current
Fig. 5 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 6 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 7 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 8 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 9 - Collector Emitter Current vs. Temperature and LED Current
iil74_01 IF - Forward Current (mA)
1001010.1
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
V
F
- Forward Voltage (V)
Tamb = - 55 °C
Tamb = 25 °C
Tamb = 85 °C
iil74_02
1001010.1
0.0
0.5
1.0
1.5
NCTR(SAT)
NCTR
IF- LED Current (mA)
NCTR - Normalized (CTR)
Normalized to:
VCE = 10 V,I
F= 10 mA
TA= 25 °C
CTRce(sat) V
CE = 0.4 V
iil74_03
1001010.1
0.0
0.5
1.0
1.5
NCTR(SAT)
NCTR
IF- LED Current (mA)
N
CTR
- Normalized (CTR)
Normalized to:
V
CE = 10 V,I
F= 10 mA,TA= 25 °C
T
A= 50 °C
CTRce(sat) VCE = 0.4 V
iil74_04
1001010.1
0.0
0.5
1.0
1.5
I
F
- LED Current (mA)
NCTR(SAT)
NCTR
Normalized to:
V
CE = 10 V,IF= 10 mA
T
A= 25 °C
CTRce(sat) VCE = 0.4 V
T
A= 70 °C
N
CTR
- Normalized (CTR)
iil74_05
0.1 1 10 100
1.5
1.0
0.5
0.0
I
F
- LED Current (mA)
N
CTR
- Normalized CTR
NCTR(SAT)
NCTR
Normalized to:
V
CE = 10 V,I
F= 10 mA, T
A= 25 °C
CTRce(sat) V
CE = 0.4 V
T
A= 85 °C
iil74_06
60503020100
0
5
10
15
20
25
30
35
50 °C
70 °C
85 °C
IF- LED Current (mA)
I
CE
- Collector Current (mA)
25 °C
40
Document Number: 83526 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.9, 20-Oct-09 5
CNY74-2H, CNY74-4H
Optocoupler, Phototransistor Output
(Multichannel) Vishay Semiconductors
Fig. 10 - Collector Emitter Leakage Current vs.Temperature
Fig. 11 - Normalized CTRcb vs. LED Current and Temperature
Fig. 12 - Collector Base Photocurrent vs. LED Current
Fig. 13 - Normalized Photocurrent vs. IF and Temperature
Fig. 14 - Normalized Non-Saturated hFE vs. Base Current and
Temperature
Fig. 15 - Normalized Saturated hFE vs. Base Current and
Temperature
iil74_07
100806040200- 20
10
10
10
10
10
10
10
10
-2
-1
0
1
2
3
4
5
T
A
- Ambient Temperature (°C)
I
CEO
- Collector Emitter (nA)
VCE = 10 V
Typical
iil74_08
0.1 1 10 100
0.0
0.5
1.0
1.5
25 °C
50 °C 70 °C
IF - Current (mA)
NCTRcb - Normalized CTRcb
IF = 10 mA
Vcb = 9.3 V
TA = 25 °C
Normalized to:
iil74_09
100
1010.1
0.01
0.1
1
10
100
1000
IF - LED Current (mA)
Icb - Collector Base
Photocurrent (µA)
Icb = 1.0357 * IF ^ 1.3631
TA = 25 °C
iil74_10
100
10
1
0.1
0.01
0.1
1
10
IF- LED Current (mA)
Normalized Photcurrent
Normalized to:
IF = 10 mA, TA = 25 °C
NIb, TA = - 20 °C
NIb, TA = 25 °C
NIb, TA = 50 °C
NIb, TA = 70 °C
iil74_11
1 10 100 1000
0.4
0.6
0.8
1.0
1.2
Ib - Base Current (µA)
NhFE - Normalized (hFE)
Ib = 20 µA
VCE = 10 V
Ta = 25 °C
- 20 °C
25 °C
50 °C
70 °C Normalized to:
iil74_12
0.0
0.5
1.0
1.5
25 °C
- 20 °C
50 °C
70 °C
Nh
FE(sat)
- Normalized Saturated h
FE
1 10 100 1000
VCE = 0.4 V
I
b
- Base Current (µA)
Normalized to:
VCE = 10 V
IB= 20 µA
T
A= 25 °C
www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83526
6Rev. 1.9, 20-Oct-09
CNY74-2H, CNY74-4H
Vishay Semiconductors Optocoupler, Phototransistor Output
(Multichannel)
Fig. 16 - Propagation Delay vs. Collector Load Resistor
PACKAGE DIMENSIONS in millimeters
iil74_13 R
L
- Collector Load Resistor (KΩ)
1001010.1
1
10
100
1000
1.0
1.5
2.0
2.5
tpLH
tpHL
t
pLH
- Propagation Delay (µs)
t
pHL
- Propagation Delay (µs)
TA = 25 °C, IF = 10 mA
VCC = 5 V, Vth = 1.5 V
i178006
Pin one ID
6.48
6.81
9.63
9.91
0.76
1.14
4° typ.
2.54 typ.
10°
3° to 9°
7.62 typ.
0.46
0.56 0.20
0.30
2.79
3.30
3.30
3.81
0.51
0.89
5.84
6.35
4321
0.79
1.27
567 8ISO method A
Document Number: 83526 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com
Rev. 1.9, 20-Oct-09 7
CNY74-2H, CNY74-4H
Optocoupler, Phototransistor Output
(Multichannel) Vishay Semiconductors
PACKAGE DIMENSIONS in millimeters
PACKAGE MARKING
Note
CNY74-2H and CNY74-4H are marked as CNY74-2 and CNY74-4 respectively.
6.48
6.81
19.77
20.07
0.76
1.14
4°
2.54 typ.
10°
typ.
3° to 9°
0.46
0.56 0.20
0.30
2.79
3.30
Pin one ID
3.30
3.81
8 7 6 5 4 3 2 1
9 10 11 12 13 14 15 16
7.62 typ.
5.84
6.35
1.27
i178007
ISO method A
0.51
0.89
21764-19
CNY74-2
V YWW H 68
21764-20
CNY74-4
V YWW H 68
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www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
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Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
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including but not limited to the warranty expressed therein.
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