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STLC5444FN, STLC5445, STLC5452FQ

Table of contents:
Info of STLC5444FN
Info of STLC5445
Info of STLC5452FQ

STLC5444FN, STLC5445, STLC5452FQ Selling Leads, Datasheet

MFG:ST Package Cooled:2002+ D/C:04+

STLC5444FN, STLC5445, STLC5452FQ Picture

STLC5444FN, STLC5445, STLC5452FQ Datasheet download

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Part Number: STLC5444FN

MFG: ST

Package Cooled: 2002+

D/C: 04+

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STLC5445 General 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.

Each line can be individually powered and monitored:therefore overload and faults can easily be detected and localized even in a large system. The status conditions detected by the device are: Current Overload,Thermal Overload, Open Loop. If activated (by means of a dedicated pin strap), a self generated power on sequence avoids the thermal over stress when a simultaneous power on has been requested for more than one channel. The current limiting value can globally be programmed for the four channels by means of an external resistor. The device has two integrated relay drivers per line to drive the test relays of the ISDN system.

STLC5445 Maximum Ratings

Symbol	Parameter Value	Value	Unit
V_DD	Voltage from digital input to DGND	0.5 to VCC + 0.5	V
V_CD	Voltage from VCC to DGND	0.4 to +7	V
V_BB	Voltage from VBAT to BGND	143 to + 0.4	V
V_BD	Voltage from BGND to DGND	3 to +0.5	V
I_WBn	AC Current into the WBn outputs (WBPn not connected to GND	250	mA peak
I_NEG	Negative current injected in the WAn outputs (-40 to +85)	50	mA
T_stg	Storage temperature	60 to 150

STLC5445 Features

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

STLC5445 Connection Diagram

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