Hutton Close, Crowther Ind Est, Dist 3, Washington, Tyne & Wear NE38 0AH, England
Email: isocom@dial.pipex.com - Tel: +44 0191 4166546 - Fax: +44 0191 4155055
Circuit
Features
Description
Absolute Maximum Ratings
Electrical Characteristics
Similar Optocouplers
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IS452, IS725: DARLINGTON OPTOCOUPLER
Circuit
Features
Low Input Current Requirement of 1 mA
High Isolation Voltage
High CTR 1000% Min
IS452 IS725
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100% Test on Electrical Parameters
Description
The IS725 consists of a Gallium Arsenide Infrared emitting diode coupled with a silicon photodarlington which has an integral base-
emitter resistor to optimise the switching speed in a dual in-line package. Surface Mount Option Available.
Applications
Telecommunications, Modem, Data Systems, Switch Mode Power Supplies, Telephone Systems.
Individual Electrical Characteristics (Ta=25°C)
Absolute Maximum Ratings (Ta=25°C)
Storage Temperature:
Operating Temperature:
Lead Soldering:
Input-to-Output Isolation Test Voltage:
-55°C to +150°C
-55°C to +100°C
260°C for 10s, 1.6mm from case
±4000 Vrms (Transient Overvoltage, t=10s)
Output
Collector-emitter voltage BVCEO:
Emitter-base voltage BVEBO:
Collector Dark Current:
Power Dissipation:
Derate Linearly:
100V
7V
100nA
300/500mW
2.00mW/°C above 25°C
Infrared Emitting Diode
Power Dissipation:
Derate Linearly:
Input Current (RMS):
Input Current (Peak):
100mW
2.00mW/°C above 25°C
60mA
±0.5A
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Contents
CtTerminal Capacitance f=1MHz, V=0 -50 pF
VFForward Voltage IF=±10mA 30 1.2 1.5 V
IRReverse Current VR=4V 10 µA
OUTPUT
BVCEO Collector-emitter Voltage IC=1mA 100 V
BVECO Emitter-collector Voltage IE=0.1mA 7 V
I
CEO
Collector-emitter Dark Current V
CE
=20V, I
F
=0 100 nA
COUPLED PARAMETER CONDITIONS MIN TYP MAX UNIT
IC/IFDC Current Transfer Ratio IF=±10mA, VCE=1V 1000 %
RISO Input-to-output Isolation Resistance VIO=500V, RH=40~60% 100 100 Gohm
VCE(SAT) Collector-emitter Saturation Voltage IF=±10mA, IC=0.5mA 0.75 1.0 V
CIO Capacitance Input to Output V=0, f=1MHz 2pF
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