IL300
www.vishay.com
Vishay Semiconductors
Linear Optocoupler, High Gain Stability, Wide Bandwidth
FEATURES
C 1
A 2
C 3
A 4
i179026_2
8 NC
K1
K2
7 NC
6 C
5 A
V
D E
i179026
•
•
•
•
•
•
•
•
•
DESCRIPTION
The IL300 linear optocoupler consists of an AlGaAs IRLED
irradiating an isolated feedback and an output PIN
photodiode in a bifurcated arrangement. The feedback
photodiode captures a percentage of the LEDs flux and
generates a control signal (I
P1
) that can be used to servo the
LED drive current. This technique compensates for the
LED’s non-linear, time, and temperature characteristics.
The output PIN photodiode produces an output signal (I
P2
)
that is linearly related to the servo optical flux created by the
LED.
The time and temperature stability of the input-output
coupler gain (K3) is insured by using matched PIN
photodiodes that accurately track the output flux of the LED.
•
•
•
•
•
Couples AC and DC signals
0.01 % servo linearity
Wide bandwidth, > 200 kHz
High gain stability, ± 0.005 %/°C typically
Low input-output capacitance
Low power consumption, < 15 mW
Isolation test voltage, 5300 V
RMS
, 1 s
Internal insulation distance, > 0.4 mm
Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
APPLICATIONS
Power supply feedback voltage/current
Medical sensor isolation
Audio signal interfacing
Isolated process control transducers
Digital telephone isolation
AGENCY APPROVALS
•
•
•
•
UL file no. E52744, system code H
DIN EN 60747-5-5 (VDE 0884-5) available with option 1
BSI
FIMKO
ORDERING INFORMATION
DIP-8
Option 6
I
L
3
0
0
-
D
E
F
G
-
X
0
#
#
T
TAPE
AND
REEL
7.62 mm
Option 7
10.16 mm
Option 9
PART NUMBER
K3 BIN
PACKAGE OPTION
> 0.7 mm
> 0.1 mm
AGENCY
CERTIFIED/
PACKAGE
UL, cUL,
BSI, FIMKO
DIP-8
DIP-8, 400 mil,
option 6
SMD-8, option 9
VDE, UL,
BSI, FIMKO
DIP-8
DIP-8, 400 mil,
option 6
SMD-8, option 9
0.557 to 1.618
IL300
IL300-X006
0.765 to 1.181
IL300-DEFG
IL300-DEFG-X006
0.851 to 1.181
-
-
K3 BIN
0.765 to 0.955
-
-
0.851 to 1.061
IL300-EF
0.945 to 1.181 0.851 to 0.955 0.945 to 1.061
-
IL300-E
IL300-F
IL300-F-X006
IL300-EF-X006 IL300-FG-X006 IL300-E-X006
-
-
SMD-8, option 7 IL300-X007T
(1)
IL300-DEFG-X007T
(1)
IL300-EFG-X007 IL300-DE-X007T IL300-EF-X007T
(1)
IL300-X009T
(1)
0.557 to 1.618
IL300-X001
IL300-X016
IL300-DEFG-X009T
(1)
0.765 to 1.181
IL300-DEFG-X001
IL300-DEFG-X016
-
0.851 to 1.181
-
-
-
-
-
0.765 to 0.955
-
-
-
-
IL300-EF-X009T
(1)
0.851 to 1.061
IL300-EF-X001
IL300-EF-X016
IL300-EF-X017T
(1)
-
IL300-E-X007T IL300-F-X007
-
IL300-F-X009T
(1)
0.945 to 1.181 0.851 to 0.955 0.945 to 1.061
-
-
-
-
IL300-E-X001
-
IL300-F-X001
IL300-F-X016
SMD-8, option 7 IL300-X017 IL300-DEFG-X017T
(1)
-
-
Note
(1)
Also available in tubes, do not put “T” on the end.
Rev. 1.8, 02-Jun-14
IL300-E-X017T IL300-F-X017T
(1)
-
IL300-F-X019T
(1)
Document Number: 83622
1
For technical questions, contact:
optocoupleranswers@vishay.com
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
IL300
www.vishay.com
OPERATION DESCRIPTION
A typical application circuit (figure 1) uses an operational
amplifier at the circuit input to drive the LED. The feedback
photodiode sources current to R1 connected to the inverting
input of U1. The photocurrent, I
P1
, will be of a magnitude to
satisfy the relationship of (I
P1
= V
IN
/R1).
The magnitude of this current is directly proportional to the
feedback transfer gain (K1) times the LED drive current
(V
IN
/R1 = K1 x I
F
). The op-amp will supply LED current to
force sufficient photocurrent to keep the node voltage (Vb)
equal to Va.
The output photodiode is connected to a non-inverting
voltage follower amplifier. The photodiode load resistor, R2,
performs the current to voltage conversion. The output
amplifier voltage is the product of the output forward gain
(K2) times the LED current and photodiode load,
R2 (V
O
= I
F
x K2 x R2).
Therefore, the overall transfer gain (V
O
/V
IN
) becomes the
ratio of the product of the output forward gain (K2) times the
photodiode load resistor (R2) to the product of the feedback
transfer gain (K1) times the input resistor (R1). This reduces
to
V
O
/V
IN
= (K2 x R2)/(K1 x R1).
The overall transfer gain is completely independent of the
LED forward current. The IL300 transfer gain (K3) is
expressed as the ratio of the output gain (K2) to the
feedback gain (K1). This shows that the circuit gain
becomes the product of the IL300 transfer gain times the
ratio of the output to input resistors
V
O
/V
IN
= K3 (R2/R1).
Vishay Semiconductors
K3-TRANSFER
FAIN LINEARITY
The percent deviation of the transfer gain, as a function of
LED or temperature from a specific transfer gain at a fixed
LED current and temperature.
PHOTODIODE
A silicon diode operating as a current source. The output
current is proportional to the incident optical flux supplied
by the LED emitter. The diode is operated in the photovoltaic
or photoconductive mode. In the photovoltaic mode the
diode functions as a current source in parallel with a forward
biased silicon diode.
The magnitude of the output current and voltage is
dependent upon the load resistor and the incident LED
optical flux. When operated in the photoconductive mode
the diode is connected to a bias supply which reverse
biases the silicon diode. The magnitude of the output
current is directly proportional to the LED incident optical
flux.
LED (LIGHT EMITTING DIODE)
An infrared emitter constructed of AlGaAs that emits at
890 nm operates efficiently with drive current from 500 μA to
40 mA. Best linearity can be obtained at drive currents
between 5 mA to 20 mA. Its output flux typically changes by
-0.5 %/°C over the above operational current range.
APPLICATION CIRCUIT
V
CC
Va
+
V
in
Vb
1
+
U1
-
I
F
V
CC
R3
2
K1
3
4
lp1
R1
K2
7
6 V
CC
5
lp2
V
C
R2
-
U2
+
V
out
V
CC
IL300 8
K1-SERVO GAIN
The ratio of the input photodiode current (I
P1
) to the LED
current (I
F
) i.e., K1 = I
P1
/I
F
.
K2-FORWARD GAIN
The ratio of the output photodiode current (I
P2
) to the LED
current (I
F
), i.e., K2 = I
P2
/I
F
.
K3-TRANSFER GAIN
The transfer gain is the ratio of the forward gain to the servo
gain, i.e., K3 = K2/K1.
Fig. 1 - Typical Application Circuit
Rev. 1.8, 02-Jun-14
Document Number: 83622
2
For technical questions, contact:
optocoupleranswers@vishay.com
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
IL300
www.vishay.com
Vishay Semiconductors
TEST CONDITION
SYMBOL
P
diss
I
F
I
PK
V
R
R
th
T
j
P
diss
V
R
R
th
T
j
P
tot
T
stg
T
amb
V
ISO
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
R
IO
R
IO
VALUE
160
2.13
60
250
5
470
100
50
0.65
50
1500
100
210
2.8
-55 to +150
-55 to +100
> 5300
> 10
12
> 10
11
UNIT
mW
mW/°C
mA
mA
V
K/W
°C
mW
mW/°C
V
K/W
°C
mW
mW/°C
°C
°C
V
RMS
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
Power dissipation
Derate linearly from 25 °C
Forward current
Surge current (pulse width < 10 μs)
Reverse voltage
Thermal resistance
Junction temperature
OUTPUT
Power dissipation
Derate linearly from 25 °C
Reverse voltage
Thermal resistance
Junction temperature
COUPLER
Total package dissipation at 25 °C
Derate linearly from 25 °C
Storage temperature
Operating temperature
Isolation test voltage
Isolation resistance
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 (LED EMITTER)
Forward voltage
V
F
temperature coefficient
Reverse current
Junction capacitance
Dynamic resistance
OUTPUT
Dark current
Open circuit voltage
Short circuit current
Junction capacitance
Noise equivalent power
COUPLER
Input-output capacitance
K1, servo gain (I
P1
/I
F
)
Servo
current
(1)(2)
K2, forward gain (I
P2
/I
F
)
Forward current
K3, transfer gain
(K2/K1)
(1)(2)
V
F
= 0 V, f = 1 MHz
I
F
= 10 mA, V
det
= -15 V
I
F
= 10 mA, V
det
= -15 V
I
F
= 10 mA, V
det
= -15 V
I
F
= 10 mA, V
det
= -15 V
I
F
= 10 mA, V
det
= -15 V
K1
I
P1
K2
I
P2
K3
0.56
0.0036
0.0050
1
0.007
70
0.007
70
1
1.65
0.011
μA
K2/K1
0.011
μA
pF
V
det
= -15 V, I
F
= 0 A
I
F
= 10 mA
I
F
= 10 mA
V
F
= 0 V, f = 1 MHz
V
det
= 15 V
I
D
V
D
I
SC
C
j
NEP
1
500
70
12
4 x 10
-14
25
nA
mV
μA
pF
W/Hz
V
R
= 5 V
V
F
= 0 V, f = 1 MHz
I
F
= 10 mA
I
F
= 10 mA
V
F
V
F
/°C
I
R
C
j
V
F
/I
F
1.25
-2.2
1
15
6
1.50
V
mV/°C
μA
pF
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
Rev. 1.8, 02-Jun-14
Document Number: 83622
3
For technical questions, contact:
optocoupleranswers@vishay.com
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
IL300
www.vishay.com
Vishay Semiconductors
TEST CONDITION
I
F
= 10 mA, V
det
= -15 V
I
F
= 1 mA to 10 mA
I
F
= 1 mA to 10 mA,
T
amb
= 0 °C to 75 °C
I
Fq
= 10 mA, MOD = ± 4 mA,
R
L
= 50
V
det
= -15 V
SYMBOL
K3/T
A
K3
MIN.
TYP.
± 0.005
± 0.25
± 0.5
MAX.
± 0.15
UNIT
%/°C
%
%
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
COUPLER
Transfer gain stability
Transfer gain linearity
PHOTOCONDUCTIVE OPERATION
Frequency response
Phase response at 200 kHz
BW (-3 db)
200
-45
kHz
Deg.
Notes
• Minimum and maximum values were tested requierements. 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.
(1)
Bin sorting:
K3 (transfer gain) is sorted into bins that are ± 6 % , as follows:
Bin A = 0.557 to 0.626
Bin B = 0.620 to 0.696
Bin C = 0.690 to 0.773
Bin D = 0.765 to 0.859
Bin E = 0.851 to 0.955
Bin F = 0.945 to 1.061
Bin G = 1.051 to 1.181
Bin H = 1.169 to 1.311
Bin I = 1.297 to 1.456
Bin J = 1.442 to 1.618
K3 = K2/K1. K3 is tested at I
F
= 10 mA, V
det
= -15 V.
(2)
Bin categories: All IL300s are sorted into a K3 bin, indicated by an alpha character that is marked on the part. The bins range from “A”
through “J”.
The IL300 is shipped in tubes of 50 each. Each tube contains only one category of K3. The category of the parts in the tube is marked on
the tube label as well as on each individual part.
(3)
Category options: standard IL300 orders will be shipped from the categories that are available at the time of the order. Any of the ten
categories may be shipped. For customers requiring a narrower selection of bins, the bins can be grouped together as follows:
IL300-DEFG: order this part number to receive categories D, E, F, G only.
IL300-EF: order this part number to receive categories E, F only.
IL300-E: order this part number to receive category E only.
SWITCHING CHARACTERISTICS
PARAMETER
Switching time
Rise time
Fall time
TEST CONDITION
I
F
= 2 mA, I
Fq
= 10 mA
SYMBOL
t
r
t
f
t
r
t
f
MIN.
TYP.
1
1
1.75
1.75
MAX.
UNIT
μs
μs
μs
μs
COMMON MODE TRANSIENT IMMUNITY
PARAMETER
Common mode capacitance
Common mode rejection ratio
TEST CONDITION
V
F
= 0 V, f = 1 MHz
f = 60 Hz, R
L
= 2.2 k
SYMBOL
C
CM
CMRR
MIN.
TYP.
0.5
130
MAX.
UNIT
pF
dB
Rev. 1.8, 02-Jun-14
Document Number: 83622
4
For technical questions, contact:
optocoupleranswers@vishay.com
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
IL300
www.vishay.com
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
0.010
Vishay Semiconductors
35
K1- Ser vo Gain - I
P1
/I
F
I
F
- LED Current (mA)
30
25
20
15
10
5
0
1.0
0°
0.008
25°
50°
75°
100°
0.006
0.004
0.002
0
1.1
1.2
1.3
V
F
- LED Forward Voltage (V)
1.4
17754
0.1
1
10
100
iil300_02
I
F
- L ED Current (mA)
Fig. 2 - LED Forward Current vs. Forward Voltage
Fig. 5 - Servo Gain vs. LED Current and Temperature
300
1.010
0 °C
25 °C
50 °C
75 °C
I
P1
- Servo Photocurrent (µA)
K3 - Transfer Gain - (K2/K1)
V
D
= - 15 V
250
200
150
100
50
0
0.1
0 °C
1.005
25 °C
1.000
Normalized to:
I
F
= 10 mA
T
A
= 25 °C
50 °C
75 °C
0.995
0.990
1
10
100
0
iil300_11
5
10
15
20
25
iil300_04
I
F
- LED Current (mA)
I
F
- LED Current (mA)
Fig. 3 - Servo Photocurrent vs. LED Current and Temperature
Fig. 6 - Normalized Transfer Gain vs.
LED Current and Temperature
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
iil300_06
5
T
A
= 25 °C
V
D
= - 15 V
Amplitude Response (dB)
Normalized Photocurrent
Normalized to: I
P1
at I
F
= 10 mA
0 °C
25 °C
50 °C
75 °C
I
F
= 10 mA, Mod = ± 2.0 Ma (peak)
0
R
L
= 1 kΩ
-5
- 10
R
L
= 10 kΩ
- 15
- 20
5
10
15
20
25
10
4
iil300_12
10
5
10
6
I
F
- LED Current (mA)
F - Frequency (Hz)
Fig. 4 - Normalized Servo Photocurrent vs.
LED Current and Temperature
Fig. 7 - Amplitude Response vs. Frequency
Rev. 1.8, 02-Jun-14
Document Number: 83622
5
For technical questions, contact:
optocoupleranswers@vishay.com
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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