IL205AT/206AT/207AT/208AT
Vishay Semiconductors
Optocoupler, Phototransistor Output, With Base Connection in
SOIC-8 package
FEATURES
• High BV
CEO
, 70 V
• Isolation Test Voltage Upgrade,
4000 V
RMS
• Industry Standard SOIC-8A Surface
Mountable Package
• Compatible with Dual Wave, Vapor Phase
and IR Reflow Soldering
• Lead (Pb)-free component
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
A
1
K
2
NC
3
NC
4
i179002
8
7
6
5
NC
B
C
E
DESCRIPTION
The IL205AT/IL206AT/IL207AT/IL208AT are optically
coupled pairs with a Gallium Arsenide 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. This family comes in a stan-
dard SOIC-8A small outline package for surface
mounting which makes them ideally suited for high
density application with limited space. In addition to
eliminating through-hole requirements, this package
conforms to standards for surface mounted devices.
ORDER INFORMATION
PART
IL205AT
IL206AT
IL207AT
IL208AT
Note:
A specified minimum and maximum CTR allows a nar-
row tolerance in the electrical design of the adjacent
circuits. The high BV
CEO
of 70 V gives a higher safety
margin compared to the industry standard
30 V.
AGENCY APPROVALS
• UL1577, File No. E52744 System Code Y
• DIN EN 60747-5-2 (VDE0884)
Available with Option 1
REMARKS
CTR 40 - 80 %, SOIC-8
CTR 63 - 125 %, SOIC-8
CTR 100 - 200 %, SOIC-8
CTR 160 - 320 %, SOIC-8
For additional information on the available options refer to Option Information.
Document Number 83614
Rev. 1.7, 16-Jan-07
For technical support, please contact: optocoupler.answers@vishay.com
www.vishay.com
1
IL205AT/206AT/207AT/208AT
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS
1, 2)
PARAMETER
INPUT
Peak reverse voltage
Forward continuous current
Power dissipation
Derate linearly from 25 °C
OUTPUT
Collector-emitter breakdown
voltage
Emitter-collector breakdown
voltage
Collector-base breakdown
voltage
I
CMAX DC
I
CMAX
Power dissipation
Derate linearly from 25 °C
COUPLER
Total package dissipation (LED +
detector)
Derate linearly from 25 °C
Operating temperature
Storage temperature
Soldering time
1)
TEST CONDITION
SYMBOL
V
R
I
F
P
diss
VALUE
6.0
60
90
1.2
UNIT
V
mA
mW
mW/°C
BV
CEO
BV
ECO
BV
CBO
I
CMAX DC
t < 1.0 ms
I
CMAX
P
diss
70
7.0
70
50
100
150
2.0
V
V
V
mA
mA
mW
mW/°C
P
tot
240
3.3
mW
mW/°C
°C
°C
s
T
amb
T
stg
at 260 °C
- 55 to + 100
- 55 to + 150
10
Note:
T
amb
= 25 °C unless otherwise specified.
2)
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
Rating for extended periods of the time can adversely affect reliability.
ELECTRICAL CHARACTERISTICS
1, 2)
PARAMETER
INPUT
Forward voltage
Reverse current
Capacitance
OUTPUT
Collector-emitter breakdown voltage
Emitter-collector breakdown voltage
Collector-emitter leakage current
COUPLER
Saturation voltage, collector-emitter
Isolation test voltage
Equivalent DC, isolation voltage
Capacitance (input-output)
Resistance, input to output
C
IO
R
IO
I
C
= 2.0 mA, I
F
= 10 mA
V
CEsat
V
ISO
4000
3535
0.5
100
0.4
V
V
RMS
VDC
pF
GΩ
I
C
= 100 µA
I
E
= 100 µA
V
CE
= 10 V
BV
CEO
BV
ECO
I
CEO
70
7.0
10
5.0
50
V
V
nA
I
F
= 10 mA
V
R
= 6.0 V
V
R
= 0 V
V
F
I
R
C
O
1.3
0.1
13
1.5
100
V
µA
pF
TEST CONDITION
PART
SYMBOL
MIN
TYP.
MAX
UNIT
Note:
1)
T
amb
= 25 °C unless otherwise specified.
2)
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.
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2
For technical support, please contact: optocoupler.answers@vishay.com
Document Number 83614
Rev. 1.7, 16-Jan-07
IL205AT/206AT/207AT/208AT
Vishay Semiconductors
CURRENT TRANSFER RATIO
PARAMETER
TEST CONDITION
PART
IL205AT
I
F
= 10 mA, V
CE
= 5.0 V
Current Transfer
Ratio
I
F
= 1.0 mA, V
CE
= 5.0 V
IL206AT
IL207AT
IL208AT
IL205AT
IL206AT
IL207AT
IL208AT
SYMBOL
CTR
CTR
CTR
CTR
CTR
CTR
CTR
CTR
MIN.
40
63
100
100
13
22
34
56
25
40
60
95
TYPE
MAX
80
125
200
320
UNIT
%
%
%
%
%
%
%
%
SWITCHING CHARACTERISTICS
PARAMETER
Switching time
TEST CONDITION
I
C
= 2 mA, R
L
= 100
Ω,
V
CC
= 10 V
PART
SYMBOL
t
on
, t
off
MIN.
TYPE
3.0
MAX
UNIT
µs
SAFETY AND INSULATION RATINGS
1)
PARAMETER
Climatic classification (according to IEC 68 part 1)
Comparative tracking index
V
IOTM
V
IORM
P
SO
I
SI
T
SI
Creepage
Clearance
Insulation thickness, reinforced rated
per IEC60950 2.10.5.1
4
4
0.2
CTI
175
6000
560
350
150
165
TEST CONDITION
SYMBOL
MIN
TYP.
55/100/21
399
V
V
mW
mA
°C
mm
mm
mm
MAX
UNIT
Note:
1)
As per IEC60747-5-2, §7.4.3.8.1, this optocoupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with the
safety ratings shall be ensured by means of protective circuits.
TYPICAL CHARACTERISTICS
T
amb
= 25 °C unless otherwise specified
1.4
1.5
NCTR
CE
-Normalized- CTR
CE
Normalized
to:
V
CE
= 10
V
I
F
= 10 mA
V
F
- Forward
Voltage
(V)
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.1
1
10
100
T
A
= 25 °C
T
A
=
85
°C
T
A
= - 55 °C
1.0
V
CE
= 5
V
0.5
V
CE
= 0.4
V
0
0.1
1
10
100
i205at_01
I
F
- Forward Current (mA)
i205at_02
I
F
- LED Current (mA)
Figure 1. Forward Voltage vs. Forward Current
Figure 2. Normalized Non-saturated and Saturated CTR
CE
vs.
LED Current
Document Number 83614
Rev. 1.7, 16-Jan-07
For technical support, please contact: optocoupler.answers@vishay.com
www.vishay.com
3
IL205AT/206AT/207AT/208AT
Vishay Semiconductors
I
CE
- Collector Emitter Current (mA)
I
CB
- Collector Base Current (µA)
150
1000
V
CB
=9.3
V
V
CE
= 10
V
100
100
10
V
CE
= 0.4
V
50
1
0
0.1
i205at_03
10
I
F
- LED Current (mA)
1
100
0.1
0.1
i205at_06
1
10
I
F
- LED Current (mA)
100
Figure 3. Collector-Emitter Current vs.LED Current
Figure 6. Collector-Emitter Photocurrent vs. LED Current
100
NI
CB
-
Normalized
(I
CB
)
Normalized
to:
I
CEO
- Collector Emitter (nA)
V
CB
= 9.3
V
I
F
= 1 mA
10
5
10
4
10
3
10
2
10
1
10
0
10
- 1
10
- 2
- 20
i205at_07
10
V
CE
= 10
V
Typical
1
0.1
0.1
i205at_04
10
I
F
- LED Current (mA)
1
100
0
20
40
60
80
100
T
A
- Ambient Temperature (°C)
Figure 4. Normalized Collector-Base Photocurrent vs. LED Current
Figure 7. Collector-Emitter Photocurrent vs. LED Current
10
NI
CB
-
Normalized
(I
CB
)
NH
FE(sat)
Normalized
Saturated H
FE
Normalized
to:
V
CB
= 9.3
V
I
F
= 10 mA
2.0
50 °C
25 °C
25 °C
Normalized
to:
I
B
= 20
µA
V
CE
= 10
V
1.5
1
1.0
V
CE
= 0.4
V
0.1
0.5
0.01
0.1
i205at_05
0.0
10
I
F
- LED Current - mA
1
100
i205at_08
0.1
10
100
1000
I
B
- Base Current (µA)
Figure 5. Normalized Collector-Base Photocurrent vs. LED Current
Figure 8. Base Current vs. I
F
and HFE
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4
For technical support, please contact: optocoupler.answers@vishay.com
Document Number 83614
Rev. 1.7, 16-Jan-07
IL205AT/206AT/207AT/208AT
Vishay Semiconductors
100
50
Switching Time (µs)
Input:
I
F
= 10 mA
Pulse
width
= 100 mS
Duty cycle = 50
%
T
OF
F
10
5
T
ON
1.0
10K
i205at_09
100K
50K
Base Emitter Resistance, R
BE
(Ω)
500K
1M
Figure 9. Typical Switching Characteristics vs.
Base Resistance (Saturated Operation)
Input
V
CC
= 5
V
Input
t
pdon
R
L
Output
V
OUT
10
%
50
%
90
%
t
on
t
pdoff
t
d
t
r
t
s
t
off
t
r
10
%
50
%
90
%
i205at_11
Figure 10. Switching Test Circuit
Document Number 83614
Rev. 1.7, 16-Jan-07
For technical support, please contact: optocoupler.answers@vishay.com
www.vishay.com
5
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