1 of 4 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 Home Page MCA230, MCA231, MCA255 OPTICALLY COUPLED ISOLATORS Circuit Features High Current Transfer Ratio 100% min (MCA231: 200% min). 55 volt BVceo for MCA255 2 of 4 Description The MCA230, MCA231 and MCA255 are photodarlington optically coupled isolators consisting of an infrared emitting diode with a silicon photodarlington transistor. Surface Mount Option Available. All electrical parameters are 100% tested by manufacturing. Specifications are guaranteed to a cumulative 0.65% AQL. Absolute Maximum Ratings (Ta=25C) Storage Temperature: Operating Temperature: Lead Soldering: Derate linearly from 25C: -55C to +150C -55C to +100C 260C for 10s, 1.6mm from case 3.5mW/C Input Diode Forward DC Current: Reverse DC Voltage: Peak Forward Current): Power Dissipation 25C ambient: Derate Linearly: 60mA 6V 3A (1s pulse, 300pps 135mW 1.83mW/C above 25C Detector Collector-Emitter Breakdown Voltage BV Collector-Base Breakdown Voltage BV CBO Emitter-Collector Breakdown Voltage BV Power Dissipation: Derate Linearly: : CEO 30V (MCA255: 55V) : 30V (MCA255: 55V) : ECO 7V 210mW 2.8mW/C above 25C Electro-optical Characteristics (Ta=25C) INPUT DIODE PARAMETER V Forward Voltage F CONDITIONS I =20mA F MIN TYP MAX UNIT 1.3 1.5 V 3 of 4 V /T F V A Forward Voltage Temp Coefficient R Reverse Voltage I =10A J Junction Capacitance V =0V, f=1MHz C OUTPUT DETECTOR Breakdown Voltage Collector to Emitter BV MCA230, 231 CEO MCA255 Collector to Base BV MCA230, 231 CBO MCA255 3 R F V V 5 V F V E CE =10V, I =0 100 F nA MIN TYP MAX UNIT I =10mA, F V CE 100 200 =5V % % I =I =50mA 1 V I =2mA, I =1mA 1 V I =10mA, I =5mA 1 V I =50mA, I =10mA 1.2 V C C C SWITCHING TIMES Non-Saturated F CONDITIONS C MCA231 pF 30 55 C Collector Dark Current CE(SAT) 50 I =10A, I =0 I V V V V F I =10A, I =0 MCA230, MCA255 25 30 55 C Emitter to Base TRANSFER CHARACTERISTICS DC Current Transfer Ratio (collector-emitter) CTR MCA230, MCA255 MCA231 Saturation Voltage mV/C I =100A, I =0 BV EBO CEO -1.8 F F F F 4 of 4 t Turn-On Time 10 s t Turn-Off Time 100 s ON OFF V ISO Dielectric withstand test voltage ISO Surge Insulation Voltage R ISO Isolation Resistance V 1.0=500Vdc C Isolation Capacitance f=1MHz V ISO I =< 10A IO 3150 Vdc 3550 Vdc 100 Gohm 0.5 s Isocom takes great effort to ensure accurate data, but regrettably cannot be held liable for any error on its website. Visit File Lists to confirm old printouts are up-to-date. Contents