IS900
MICROPROCESSOR COMPATIBLE
SCHMITT TRIGGER OPTICALLY
COUPLED ISOLATOR
APPROVALS
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UL recognised, File No. E91231
DESCRIPTION
The IS900 optically coupled isolator consists of a
Gallium Arsenide infrared emitting diode and a
Microprocessor Compatible Schmitt trigger output
mounted in a standard 6 pin dual in line package.
FEATURES
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Options :-
10mm lead spread - add G after part no.
Surface mount - add SM after part no.
Tape&reel - add SMT&R after part no.
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High data rate, 1MHz typical (NRZ)
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Microprocessor compatible drive
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Logic compatible output sinks 16
milliamperes at 0.4 volts maximum
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High Isolation Voltage (5.3kV
RMS
,7.5kV
PK
)
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High common mode rejection ratio
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Fast switching : t
rise,
t
fall
= 100nS typical
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Wide supply voltage capability, compatible
with all popular logic systems
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Guaranteed On / Off threshold hysteresis
APPLICATIONS
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Logic to logic isolator
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Line receiver-eliminates noise and
transient problems
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Programmable current level sensor
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AC to TTL conversion - square wave shaping
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Digital programming of power supplies
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Interfaces computers with peripherals
Dimensions in mm
2.54
±0.25
6.5
±0.3
1
2
3
1.2
±0.3
7.12
±0.3
3.5
±0.5
0.5
typ
2.9
±0.5
0.5
±0.1
3.25
±0.5
0.26
±0.1
13°
Max
7.62
±0.3
6 V
CC
5
GROUND
4 V
O
ABSOLUTEMAXIMUMRATINGS
(25°C unless otherwise specified)
Storage Temperature
-40°C to + 125°C
Operating Temperature
-25°C to + 85°C
Lead Soldering Temperature
(1/16 inch (1.6mm) from case for 10 secs) 260°C
INPUT DIODE
Forward Current, I
F
Peak forward current
Reverse Voltage, V
R
Power Dissipation
(derate linearly 1.41mW / °C above 25°C)
50mA
1A
(Pulse width
≤
100uS, Duty ratio=0.001)
6V
70mW
OUTPUTDETECTOR
Output Voltage, Vcc
Supply Voltage, V
OH
Output current, I
OL
Power Dissipation
(derate linearly 2mW / °C above 25°C)
OPTION SM
SURFACE MOUNT
OPTION G
7.62
16V
16V
50mA
150mW
0.6
0.1
10.46
9.86
POWER DISSIPATION
1.25
0.75
0.26
10.16
Total Power Dissipation
(derate linearly 2.94mW/
°C
above 25°C)
170mW
ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
5/3/03
DB92175-AAS/A1
ELECTRICAL CHARACTERISTICS ( T
A
= 25°C Unless otherwise noted )
PARAMETER
Input
Forward Voltage (V
F
)
Forward Voltage (V
F
)
Reverse Current (I
R
)
Reverse Breakdown Voltage(V
R
)
Operating Voltage Range (V
CC
)
Supply Current I
6
(off )
Output Current High ( I
OH
)
Supply Current I
6
(on )
Output Voltage, Low (V
OL
)
Turn-on Threshold Current I
F
(on )
1.1
MIN TYP MAX UNITS
0.7
1.0
1.1
V
V
µ
A
V
V
mA
µ
A
mA
V
mA
mA
mA
0.9
V
RMS
V
PK
µ
s
µ
s
µ
s
µ
s
See note 1
See note 1
T
A
= 25°C
V
CC
= 5V
I
F
= 4mA
R
L
= 280
Ω
TEST CONDITION
I
F
= 0.3mA
I
F
= 4mA
V
R
= 3V
I
R
=10
µ
A
I
F
= 0mA, V
CC
= 5V
I
F
=0mA,V
CC
=V
O
=15V
I
F
= 4mA, V
CC
= 5V
I
OL
= 16mA
,
I
F
= 4mA,
V
CC
= 5V
R
L
= 280
Ω,
V
CC
= 5V,
T
A
= 25°C
R
L
= 280
Ω,
V
CC
= 5V
R
L
= 270
Ω,
V
CC
= 5V
1.4
10
3.0
3
15
5
100
5
0.4
2.0
4.0
Output
Coupled
Turn-off Threshold Current I
F
(off )
Hysteresis Ratio I
F
(off ) / I
F
(on )
Input to Output Isolation Voltage V
IS0
High to Low (tPHL)
Fall Time (tf)
Low to High (tPLH)
Rise Time (tr)
Note 1
Note 2
0.3
0.5
5300
7500
1
2
3
0.5
6
0.5
Measured with input leads shorted together and output leads shorted together.
Special Selections are available on request. Please consult the factory.
SWITCHING CHARACTERISTICS
I
6
47Ω
6
V
IN
tr = tf = 0.01µ sec
Z = 50Ω
5
4
5V
V
IN
270Ω
V
O
0.1µF
V
O
t
f
50%
tPHL
V
O
tPLH
V
OH
1.5V
90%
10%
t
r
SWITCHINGTESTCIRCUIT
5/3/03
DB92175-AAS/A1
LED专区
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