LH1529BACTR Datasheet PDF - Infineon

●DESCRIPTION

●The LH1529A and LH1529B Telecom switches consist 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 optocoupler provide 5300 VRMS of input to output isolation.

●The SSR is integrated on a monolithic receptor die using high voltage technology. The optocoupler provides bidirectional current sensing via two antiparallel GaAs infrared emitting diodes. The opto channel provides a minimum CTR of 33% at 6.0 mA.

●FEATURES

●• Solid State Relay and Optocoupler in One Package

●• Surface Mount Package

●• l/O Isolation, 5300 VRMS

●• LH1529A, CTR Min.=33%

●• LH1529B, CTR Min.=100%

●• Flammability; UL94,VØ

●• Optocoupler

●   – Bidirectional Current Detection

●• Solid-state Relay

●   – See LH1540 Data Sheet

●   – Typical RON 20 Ω

●   – Load Voltage 350 V

●   – Load Current 120 mA

●   – Current Limit Protection

●AGENCY APPROVALS

●• UL – File No. E52744

●• BSI/BABT Cert. No. 7980

●• FIMKO Approval

●APPLICATIONS

●• General Telecom Switching

●   – On/off Hook Control

●   – Dial Pulse

●   – Ring Current Detection

●   – Loop Current Sensing

●• See Appnote 56