STLC5445 数据手册 ( 数据表 ) - STMicroelectronics

DESCRIPTION
The QUAD LINE FEED CONTROLLER provides a power source for up to four U line interfaces. The power source to the device is a local battery or a centralized regulated power supply. Each powered line is individually controlled and monitored by the device interface.
A MPI or a simple parallel interface can be selected by a pin strap.

■ BATTERY VOLTAGE UP TO 120V
■ SUPPLIES POWER FOR UP TO FOUR DIGITAL TELEPHONE LINES
■ PROGRAMMABLE CURRENT LIMITING
■ LONGITUDINAL CURRENT CANCELLATION
■ ETSI ETR80 COMPLIANT
■ OUTPUT CURRENT UP TO 140 mA
■ STATUS CONDITION DETECTION FOR EACH LINE
■ AUTOMATIC THERMAL PROTECTION
■ AUTO POWER ON SEQUENCE
■ OUTPUT STAGE OPTIMIZED FOR MINIMAL OUTPUT OVERVOLTAGE PROTECTION
■ TWO EXTERNAL RELAY DRIVERS PER LINE
■ PARALLEL OR MPI CONTROL INTERFACE
■ HI-QUAD PACKAGE 64 PIN