IS357 HIGH DENSITY MOUNTING PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS Dimensions in mm DESCRIPTION The IS357 is an optically coupled isolator consisting of an infrared light emitting diode and NPN silicon photo transistor in a space efficient dual in line plastic package. FEATURES z Marked as FPT1. z Current Transfer Ratio MIN. 50% Isolation Voltage (3.75kVRMS ,5.3kVPK ) All electrical parameters 100% tested Drop in replacement for Sharp PC357 z z z 3.85+-0.3 APPLICATIONS z Computer terminals z Industrial systems controllers z Measuring instruments z Signal transmission between systems of different potentials and impedances ISOCOMCOMPONENTSLTD Unit 25B, Park View Road West, Park View Industrial Estate, Brenda Road Hartlepool, Cleveland, TS25 1UD Tel: (01429) 863609 Fax :(01429) 863581 27/11/08 DB92845 ABSOLUTEMAXIMUMRATINGS (25°C unless otherwise specified) Storage Temperature -55°C to + 150°C Operating Temperature -55°C to + 100°C Lead Soldering Temperature (1/16 inch (1.6mm) from case for 10 secs) 260°C INPUTDIODE Forward Current Reverse Voltage Power Dissipation 50mA 6V 70mW OUTPUT TRANSISTOR Collector-emitter Voltage BVCEO Emitter-collector Voltage BVECO Collector Current Power Dissipation 35V 6V 50mA 150mW POWER DISSIPATION Total Power Dissipation 170mW (derate linearly 2.26mW/°C above 25°C) ELECTRICAL CHARACTERISTICS ( TA = 25°C Unless otherwise noted ) PARAMETER Input MIN TYP MAX UNITS Forward Voltage (VF) 1.2 Reverse Current (IR) Output Coupled V IF = 20mA 10 μA VR = 4V V IC = 0.5mA 100 V nA IE = 0.1mA VCE = 20V 35 Emitter-collector Breakdown (BVECO) Collector-emitter Dark Current (ICEO) 6 Current Transfer Ratio (CTR) 50 600 % 5mA IF , 5V VCE 80 130 200 300 160 260 400 600 % % % % 5mA IF , 5V VCE 5mA IF , 5V VCE 5mA IF , 5V VCE 5mA IF , 5V VCE 0.2 V 20mA IF , 1.0mA IC VRMS VPK See note 1 See note 1 Ω μs μs VIO = 500V (note 1) VCE = 2V , IC = 2mA, RL = 100Ω Collector-emitter SaturationVoltageVCE (SAT) Input to Output Isolation Voltage VISO 3750 5300 Input-output Isolation Resistance RISO 5x1010 Output Rise Time tr 4 Output Fall Time tf 3 27/11/08 1.4 Collector-emitter Breakdown (BVCEO) Optional CTR Grades: IS357A IS357B IS357C IS357D Note 1 TEST CONDITION 18 18 Measured with input leads shorted together and output leads shorted together. DB92845