HC5504B: EIA/ITU PABX SLIC with 40mA Loop Feed

The Intersil SLIC incorporates many of the BORSHT functions on a single IC chip. This includes DC battery feed, a ring relay driver, supervisory and hybrid functions. This device is designed to maintain transmission performance in the presence of externally induced longitudinal currents. Using the unique Intersil dielectric isolation process, the SLIC can operate directly with a wide range of station battery voltages.

The SLIC also provides selective denial of power. If the PBX system becomes overloaded during an emergency, the SLIC will provide system protection by denying power to selected subscriber loops.

The Intersil SLIC is ideally suited for the design of new digital PBX systems by eliminating bulky hybrid transformers.

Key Features
  • Pin for Pin Replacement for the HC-5504
  • Capable of 5V or 12V (VB+) Operation
  • Monolithic Integrated Device
  • DI High Voltage Process
  • Compatible With Worldwide PBX Performance Requirements
  • Controlled Supply of Battery Feed Current for Short Loops (41mA)
  • Internal Ring Relay Driver
  • Allows Interfacing With Negative Superimposed Ringing Systems
  • Low Power Consumption During Standby
  • Switch Hook Ground Key and Ring Trip Detection Functions
  • Selective Denial of Power to Subscriber Loops
  • Pb-free Available
Applications
  • Solid State Line Interface Circuit for Analog and Digital PBX Systems
  • Direct Inward Dial (DID) Trunks
  • Voice Messaging PBXs
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN571: Using Ring Sync with HC-5502A and HC-5504 SLICsPDF13 Nov 201454 KB
AN549: The HC-5502X/4X Telephone Subscriber Line Interface CircuitsPDF13 Nov 2014254 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
HC-5504B DatasheetPDF14 Nov 2014219 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
HC3-5504B-524 Ld3.7724N/ANA
HC4P5504B-528 Ld PLCC1.16283225
HC4P5504B-5X9628 Ld PLCC T+R1.16283225
HC9P5504B-524 Ld SOIC0.64241240
HC9P5504B-5X9624 Ld SOIC T+R0.64241240
HC9P5504B-5Z24 Ld SOIC0.64243260RoHS
HC9P5504B-5ZX9624 Ld SOIC T+R0.64243260RoHS
Datasheet
HC-5504B Datasheet 14 Nov 2014
Other
AN549: The HC-5502X/4X Telephone Subscriber Line Interface Circuits 13 Nov 2014
AN571: Using Ring Sync with HC-5502A and HC-5504 SLICs 13 Nov 2014
HC5504B
24 Ld SOIC T+R HIP6018B
28 Ld PLCC HI-507