Datasheet4U Logo Datasheet4U.com

HC5549 - Low Power SLIC with Battery Switch

General Description

MTU compliant standby mode with active loop detector.

Forward battery loop feed.

Reserved internal test mode.

Key Features

  • Dual Battery Operation.
  • Single Additional +5V Supply.
  • Low Standby Power Consumption (48V, 35mW).
  • On Hook Transmission.
  • Tip and Ring Disconnect.
  • Soft or Hard Polarity Reversal.
  • Supports 12 kHz or 16 kHz Pulse Metering.
  • Ring Relay Driver.
  • On Chip 2-wire AC/DC Loopback.
  • No Latch-Up or Power Supply Sequencing.
  • 0o to 70o or -40o to 85o Ambient Temp Range.
  • Low External Component Count Applicat.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
HC5500M03 Hybrid Coupler Yantel
HC5503 Low Cost 24V SLIC Renesas
HC5503T Balanced PBX/Key System SLIC Renesas
HC55120 Low Power UniSLIC14 Intersil
HC55121 Low Power UniSLIC14 Intersil

Other Datasheets by Intersil (now Renesas)

Part Number Description
HC5503 Low Cost 24V SLIC
HC5503C Unbalanced PBX/Key System SLIC
HC5513 TR909 DLC/FLC SLIC
HC5515 ITU CO/PABX SLIC
HC5517 3 REN Ringing SLIC

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
HC5549 Semiconductor Data Sheet January 1999 File Number 4539.1 Low Power SLIC with Battery Switch The HC5549 Subscriber line interface circuit is a 100V diellectrically isolated bipolar integrated circuit for use in short loop ISDN, PABX and Pairgain applications. The HC5549 has been optimized for low power as required for battery backed remote terminals or for applications requiring emergency powering from the line such as European ISDN NT1+ designs. A high and low voltage battery supply may be connected to the HC5549 so that power dissipation can be lowered in the off hook condition in these short loop applications. The high battery supply can be used in the on-hook condition to allow interfacing to fax and answering machines that require 48V to detect end of call status.