The HC5503PRC is a low cost SLIC optimized for large Telecom switches. It combines a flexible voltage feed architecture with the Intersil latch-free DI bonded wafer process, to provide a low component count, carrier class solution at very low cost. The re-configurable design permits simple, economical solutions for campus-wide call center and PBX applications. External components can be used in conjunction with the high battery voltage capability to meet the complex impedance and long loop drive requirements of Central Office switches, worldwide.


  • Wide Operating Battery Range (-40V to -58V)
  • Single Additional +5V Supply
  • 30mA Short Loop Current Limit
  • Ring Relay Driver
  • Switch Hook and Ring Trip Detect
  • Low On-Hook Power Consumption
  • On-Hook Transmission
  • ITU-T Longitudinal Balance Performance
  • Loop Power Denial Function
  • Thermal Protection
  • Supports Tip, Ring or Balanced Ringing Schemes
  • Low Profile SO and QFN Surface Mount Packaging
  • Pb-free Available


  • Central Office, PBX, Call Centers
  • Related Literature

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active SOICW Tube 300
Active SOICW Reel 1000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
HC5503PRC Datasheet Datasheet PDF 624 KB
Application Notes & White Papers
AN9924: HC5503PRC SLIC and the Newave NW1034 Quad PCM CODEC with Programmable Gain Application Note PDF 480 KB
AN9872: HC5503PRC SLIC and the Texas Instruments TP3057A Combined PCM CODEC and Filter Application Note PDF 557 KB
AN9898: HC5503PRC SLIC and the Texas Instruments TCM38C17 Quad Combo Application Note PDF 486 KB
AN9873: HC5503PRC SLIC and the NeWave NW1034 Combo Device Application Note PDF 497 KB
AN571: Using Ring Sync with HC-5502A and HC-5504 SLICs Application Note PDF 284 KB
PCN13060 - Test Site Change for the Listed Intersil Products Product Change Notice PDF 223 KB
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB