ILD74, ILQ74
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
A
1
2
3
4
8 E
7 C
6 C
5 E
FEATURES
• ILD74, ILQ74 TTL compatible
• Transfer ratio, 35 % typical
• Coupling capacitance, 0.5 pF
• Single, dual, and quad channel
• Industry standard DIP packages
• Compliant to RoHS Directive 2002/95/EC and
in accordance to WEEE 2002/96/EC
Dual Channel
C
C
A
A
C
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
A
A
C
C
A
AGENCY APPROVALS
• UL1577, file no. E52744 system code H or J, double
protection
• CSA 93751
• BSI IEC 60950; IEC 60065
• DIN EN 60747-5-2 (VDE 0884)/DIN EN 60747-5-5 pending
available with option 1
• FIMKO
i179015-1
DESCRIPTION
The ILD74, ILQ74 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 ILD74, ILQ74 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 ILD74 has two isolated channels in a single DIP
package; the ILQ74 has four isolated channels per package.
ORDERING INFORMATION
DIP-#
Option 6
I
L
x
7
4
-
X
0
#
#
T
7.62 mm
10.16 mm
PART NUMBER
x = D (Dual) or Q (Quad)
PACKAGE OPTION
TAPE AND
REEL
Option 7
Option 9
> 0.7 mm
> 0.1 mm
AGENCY CERTIFIED/PACKAGE
UL, CSA, BSI, FIMKO
DIP-8
SMD-8, option 9
DIP-16
SMD-16, option 9
VDE, UL, CSA, BSI, FIMKO
DIP-8
DIP-8, 400 mil, option 6
SMD-8, option 7
DIP-16
DUAL CHANNEL
CTR (%)
12.5
ILD74
ILD74-X009T
(1)
-
-
12.5
ILD74-X001
ILD74-X016
ILD74-X017T
-
QUAD CHANNEL
12.5
-
-
ILQ74
ILQ74-X009T
(1)
12.5
-
-
-
ILQ74-X001
Notes
• Additional options may be possible, please contact sales office.
(1)
Also available in tubes, do not put “T” on the end.
Document Number: 83640
Rev. 1.7, 27-May-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
1
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
ILD74, ILQ74
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
Peak reverse voltage
Forward continuous current
Power dissipation
Derate linearly from 55 %
OUTPUT
Collector emitter breakdown voltage
Emitter collector breakdown voltage
Collector base 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
ILD74
ILQ74
ILD74
ILQ74
V
R
I
F
P
diss
3
60
100
1.33
20
5
70
150
2
5300
10
12
10
11
V
mA
mW
mW/°C
V
V
V
mW
mW/°C
V
RMS
mW
mW
mW/°C
mW/°C
mm
mm
°C
°C
s
TEST CONDITION
PART
SYMBOL
VALUE
UNIT
BV
CEO
BV
ECO
BV
CBO
P
diss
V
ISO
R
IO
R
IO
P
tot
P
tot
400
500
5.33
6.67
7
7
- 55 to + 150
- 55 to + 100
10
Note
• 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
(T
amb
= 25 °C, unless otherwise specified)
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
G
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
20
50
5
10
500
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
• 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.
www.vishay.com
2
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83640
Rev. 1.7, 27-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
ILD74, ILQ74
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
CURRENT TRANSFER RATIO
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
DC current transfer ratio
TEST CONDITION
I
F
= 16 mA, V
CE
= 5 V
SYMBOL
CTR
DC
MIN.
12.5
TYP.
35
MAX.
UNIT
%
Vishay Semiconductors
SWITCHING CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Switching times
TEST CONDITION
R
L
= 100
,
V
CE
= 10 V, I
C
= 2 mA
SYMBOL
t
on
, t
off
MIN.
TYP.
3
MAX.
UNIT
μs
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
1.4
1.5
T
amb
= - 55 °C
V
F
- Forward Voltage (V)
1.2
1.1
1.0
0.9
0.8
0.7
0.1
1
10
100
T
amb
= 85 °C
T
amb
= 25 °C
N
CTR
- Normalized (CTR)
1.3
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
1.0
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
iil74_01
I
F
- Forward Current (mA)
iil74_03
I
F
- LED Current (mA)
Fig. 1 - Forward Voltage vs. Forward Current
Fig. 3 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
1.5
1.5
N
CTR
- Normalized (CTR)
N
CTR
- Normalized (CTR)
1.0
Normalized to:
V
CE
= 10 V, I
F
= 10 mA
T
A
= 25 °C
CTR
ce(sat)
V
CE
= 0.4 V
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
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
0.1
iil74_04
1
10
100
iil74_02
I
F
- LED Current (mA)
I
F
- LED Current (mA)
Fig. 2 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 4 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Document Number: 83640
Rev. 1.7, 27-May-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
3
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
ILD74, ILQ74
Vishay Semiconductors
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
1.5
1.5
1.0
T = 85 °C
A
N
CTRcb
- Normalized CTRcb
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
1.0
Normalized to:
I
F
= 10 mA
V
cb
= 9.3 V
T
A
= 25 °C
25 °C
0.5
NCTR(SAT)
NCTR
0.0
0.1
1
10
100
0.5
50 °C
0.0
0.1
1
10
100
70 °C
iil74_05
I
F
- LED Current (mA)
iil74_08
I
F
- Current (mA)
Fig. 5 - Normalized Non-Saturated and Saturated CTR vs.
LED Current
Fig. 8 - Normalized CTR
cb
vs. LED Current and Temperature
35
1000
100
10
1
0.1
0.01
0.1
iil74_09
I
CE
- Collector Current (mA)
30
25
20
15
10
5
0
0
10
20
30
40
50
60
25 °C
85 °C
70 °C
50 °C
T
A
= 25 °C
I
cb
= 1.0357 * I
F
^ 1.3631
I
cb
- Collector Base
Photocurrent (µA)
1
10
100
iil74_06
I
F
- LED Current (mA)
I
F
- LED Current (mA)
Fig. 6 - Collector Emitter Current vs. Temperature and LED Current
Fig. 9 - Collector Base Photocurrent vs. LED Current
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. 7 - Collector Emitter Leakage Current vs.Temperature
Fig. 10 - Normalized Photocurrent vs. I
F
and Temperature
www.vishay.com
4
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83640
Rev. 1.7, 27-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
ILD74, ILQ74
Optocoupler, Phototransistor Output
(Dual, Quad Channel)
Vishay Semiconductors
1.2
70 °C
Nh
FE
- Normalized (h
FE
)
50 °C
1.0
25 °C
- 20 °C
0.8
Normalized to:
I
b
= 20 µA
V
CE
= 10 V
T
a
= 25 °C
0.6
0.4
1
iil74_11
10
100
1000
I
b
- Base Current (µA)
Fig. 11 - Normalized Non-Saturated h
FE
vs. Base Current and
Temperature
Nh
FE(sat)
- Normalized Saturated h
FE
1.5
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
10
100
1000
iil74_12
I
b
- Base Current (µA)
Fig. 12 - Normalized Saturated h
FE
vs. Base Current and
Temperature
1000
2.5
t
pLH
- Propagation Delay (µs)
100
t
pHL
2.0
10
t
pLH
1
0.1
1.5
1
10
1.0
100
iil74_13
R
L
- Collector Load Resistor (KΩ)
Fig. 13 - Propagation Delay vs. Collector Load Resistor
t
pHL
- Propagation Delay (µs)
T
A
= 25 °C, I
F
= 10 mA
V
CC
= 5 V, V
th
= 1.5 V
Document Number: 83640
Rev. 1.7, 27-May-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
5
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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