IL255

SINGLE CHANNEL IL255 BIDIRECTIONAL INPUT OPTOCOUPLER FEATURES AC or Polarity Insensitive Inputs Continuous Forward Current, 130 mA Applications—Telecommunications – Ring Detection – Loop Current Detector Built-in Reverse Polarity Input Protection Improved CTR Symmetry Industry Standard DIP Package Underwriters Lab File #E52744 V VDE Approval #0884 Applied For D E DESCRIPTION The IL255 is a bidirectional input optically coupled isolator consisting of two high current Gallium Arsenide infrared LEDs coupled to a silicon NPN phototransistor. The IL255 has a minimum CTR of 20% This optocoupler is ideal for applications requiring AC signal detection and monitoring. Maximum Ratings Emitter Peak Pulsed Current (1 µs, 300 pps) ........... 3 A Continuous Forward Current......... 130 mA RMS Power Dissipation at 25°C .................... 175 mW Derate Linearly from 25°C ................ 2.3 mW/°C Detector Collector-Emitter Breakdown Voltage ........ 30 V Emitter-Base Breakdown Voltage ................ 5 V Collector-Base Breakdown Voltage ............ 70 V Power Dissipation at 25°C .................... 200 mW Derate Linearly from 25°C ................ 2.6 mW/°C Package Isolation Test Voltage ................... 5300 VACRMS Between Emitter and Detector Refer to Standard Climate 23°C/50%RH, DIN 50014 Creepage...........................................min. 7 mm Clearance ..........................................min. 7 mm Isolation Resistance VIO=500 V, TA=25°C................