IL329

IL329 OPTICALLY COUPLED TELECOM SWITCH Preliminary Data Sheet FEATURES Solid state relay and AC input Optocoupler Package—Single 18 Pin l/O Isolation, 2500 VRMS Surface Mountable Optocoupler – Bidirectional Current Detection Solid-state Relay – Typical RON 25 W – Load Voltage 400 V – Load Current 100 mA – Current Limit Protection – High Surge Capability – Linear, AC/DC Operation – Clean Bounce Free Switching – Low Power Consumption – High Reliability Monolithic Receptor Applications—General Telecom Switching – On/off Hook Control – Dial Pulse – Ring Current Detection – Loop Current Sensing DESCRIPTION The IL329 Telecom switch consists of an optically coupled solid state relay (SSR) and a bidirectional input optocoupler. The SSR is ideal for performing switchhook and dial-pulse switching while the optocoupler performs ring detection and loop current sensing functions. Both the SSR and opto coupler provide 2500 VRMS of input to ouput isolation. The SSR is integrated on a monolithic receptor die using high voltage BCDMOS technology. The SSR features low ON-resistance, high breakdown voltage and current-limit circuitry that protects the relay from telephone line induced lightning surges. The optocoupler provides bidirectional current sensing via two antiparallel GaAs infrared emitting diodes. The opto channel provides a minimum CTR of 33% at 6 mA. The IL329 comes in a 18 pin, plastic surface mount package. Dimensions in Inches (mm) Leads 5 & 14 missing 18 .224 (5.7) ....