Microsemi Corp. Telecom LE75183DDSCT

The LE75183DDSCT is a monolithic solid-state Line Card Access Switch designed for analog line card applications, providing equivalent functionality to traditional electromechanical relays. It supports power ringing access, line test access, and SLIC test access, making it suitable for use in central offices, digital loop carriers, and private branch exchanges. The device features low ON-resistance, clean switching with make-before-break and break-before-make options, and built-in protection mechanisms including current limiting and thermal shutdown. Operating on a 5-V supply, the LE75183DDSCT is optimized for low power consumption, making it ideal for remote power applications. It includes a default all OFF state upon loss of battery and requires minimal external components, as it is TTL logic control compatible. The device is available in a 20-pin SOIC package, ensuring compatibility with existing designs while offering a compact solution for new applications.