L7581

Data Sheet November 1999 L7581 Ringing Access Switch Features s Small size/surface-mount packaging s Monolithic IC reliability s Low impulse noise s Make-before-break, break-before-make operation s Clean, bounce-free switching s Low, matched ON-resistance s Built-in current limiting, thermal shutdown, and SLIC protection s 5 V only operation, very low power consumption s Battery monitor, all OFF state upon loss of battery s No EMI s Latched logic level inputs, no drive circuitry s Only one external protector required Applications s Central office s DLC s PBX s DAML s HFC/FITL Description The L7581 Ringing Access Switch is a monolithic solid-state device that provides the switching functionality of a 2 form C switch. The L7581 is designed to provide power ringing access to tip and ring in central office, digital loop carrier, private branch exchange, digitally added main line, and hybrid fiber coax/fiber-in-the-loop analog line card applications. The L7581 has three states: the idle ...