IL55B

IL55B PHOTODARLINGTON OPTOCOUPLER FEATURES High Collector-Emitter Breakdown Voltage— 80 V minimum High Isolation Resistance, 1011 W Typical Standard Plastic DIP Package Underwriters Lab File #E52744 V D E VDE 0884 Available with Option 1 DESCRIPTION The IL55B is an optically coupled isolator with a Gallium Arsenide infrared LED and a silicon photodarlington sensor. Switching can be achieved while maintaining a high degree of isolation between driving and load circuits. These optocouplers can be used to replace reed and mercury relays with advantages of long life, high speed switching and elimination of magnetic fields. Maximum Ratings Emitter Peak Reverse Voltage ............................................. 3 V Continuous Forward Current .............................. 60 mA Power Dissipation at 25°C............................... 100 mW Derate Linearly from 55°C ......................... 1.33 mW/°C Detector Collector-Emitter Breakdown Voltage, BVCEO ....... 80 V Emitter-Collector Breakdown Voltage BVECO .......... 5 V Collector (load) Current.................................... 125 mA Power Dissipation at 25°C Ambient ................ 150 mW Derate Linearly from 25°C ........................... 2.0 mW/°C Package Total Dissipation at 25°C Ambient .................. 250 mW Derate Linearly from 25°C ........................... 3.3 mW/°C Isolation Test Voltage (between emitter and detector refered to standard climate 23°C/50%RH, DIN 50014) .................................