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STLC5444

Features: SUPPLIES POWER FOR UP TO FOUR DIGITAL TELEPHONELINESCONFORMS TO THE CCITT RECOMMENDATIONS FOR POWER FEED AT THE S OR T REFERENCE POINTSSUPPORTS POINT-TO-POINT AND POINT TO MULTIPOINT CONFIGURATIONSEACH OF THE FOUR LINES IS INDIVIDUALLY CONTROLLEDHIGH-VOLTAGE BCD TECHNOLOGY SUPPORTING UP ...

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SeekIC No. : 004508094 Detail

STLC5444: Features: SUPPLIES POWER FOR UP TO FOUR DIGITAL TELEPHONELINESCONFORMS TO THE CCITT RECOMMENDATIONS FOR POWER FEED AT THE S OR T REFERENCE POINTSSUPPORTS POINT-TO-POINT AND POINT TO MULTIPOINT CONFI...

STLC5444 Data Sheet

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Part Number:
STLC5444
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/24

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Product Details

Description



Features:

SUPPLIES POWER FOR UP TO FOUR DIGITAL TELEPHONELINES
CONFORMS TO THE CCITT RECOMMENDATIONS FOR POWER FEED AT THE S OR T REFERENCE POINTS
SUPPORTS POINT-TO-POINT AND POINT TO MULTIPOINT CONFIGURATIONS
EACH OF THE FOUR LINES IS INDIVIDUALLY CONTROLLED
HIGH-VOLTAGE BCD TECHNOLOGY SUPPORTING UP TO -130V
AUTOMATIC THERMAL SHUTDOWN
STATUS CONDITION DETECTION (BY MICROPROCESSOR) FOR EACH LINE:
   Low output voltage
   Openloop
   Current overload
   Thermal overload
   Normal line condition
PROGRAMMABLE CURRENT LIMITING
OUTPUT CURRENT UP TO 120mA


Pinout

Connection Diagram



Specifications

Parameter Value
Voltage from Digital Input to DGND -0.4V to VCC
Voltage from VCC to DGND -0.4V to +7V
Voltage from VBB to DGND -130V to +0.4V
100ns Pulse voltage from Si to DGND (See Notes) -130V to +2V
Voltage from BGND to DGND +0.5V, -3V
Storage Temperature T = -60 to +150
Note : Si stands for O0, O1, O2 or O3 outputs.


Description

The STLC5444 ISDN Quad Feeder Power Supply (IQFPS) provides a power source for up to four line interfaces.The power source to the device is a local battery or a centralized regulated power supply.It can operate in point-to-point and point-to-multipoint configurations as far as S interface is concerned.

By the STLC5444 microprocessor interface, each powered line is individually controlled and monitored.Therefore, verloads and faults are easy to detect and localize even in a large system.

The status conditions detected by the STLC5444 on each line that may be read by the microprocessor are :
low output voltage
openloop
current overload
thermal overload
normal line conditions
A hardware current limiting programmable feature is available.




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