LE75181CBSC 数据手册 ( 数据表 ) - ETC

[Zarlink Semiconductor Inc.]

DESCRIPTION
The VoiceEdge™ family VE750 series of Line Card Access Switches (LCAS) is a family of monolithic solid-state switches that is designed to provide both power ringing access and test access on the analog line card. These devices, while not a pinfor-pin replacement for the traditional electromechanical relay (EMR) solution, provide the equivalent switching functionality. The VE750 series LCAS is meant as a solid-state alternative to the EMRs.

FEATURES
◾ Small size/surface-mount packaging
◾ Monolithic IC reliability
◾ Low impulse noise
◾ Make-before-break, break-before-make operation
◾ Clean, bounce-free switching
◾ Low, matched ON-resistance
◾ Built-in current limiting, thermal shutdown, and SLIC
   protection
◾ 5 V only operation, very low power consumption
◾ Battery monitor, all OFF state upon loss of battery
◾ No EMI
◾ Latched logic level inputs, no drive circuitry
◾ Only one external protector required
◾ TTL logic control compatible
◾ Default power up state

APPLICATIONS
◾ Central office
◾ DLC
◾ PBX
◾ DAML
◾ HFC/FITL