Overview
Description
Support is limited to customers who have already adopted these products.
The Intersil HC5503 low cost SLIC is optimized for use in small Analog or mixed Analog and Digital Key Telephone Systems (KTS) or PBX products. The low component count solution and surface mount package options, enable a small desktop Key System/PBX product to be achieved. The internal power dissipation of the end product is minimized by the low power consumption and minimal power supply voltage requirements of the HC5503. The HC5503 integrated solution provides higher quality, higher reliability and better performance solution than a transformer, thick film hybrid or discrete analog subscriber interface design. The HC5503 is designed in a Dielectrically isolated bipolar technology and is inherently latch proof and does not require hot plug or power supply sequencing precautions.
Features
- Wide Operating Battery Range (-21V to -44V)
- Single Additional +5V Supply
- 25mA 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 Surface Mount Packaging
- Pin Compatible with Industry Standard HC5504B SLIC
- Pb-free Available
Comparison
Applications
- Analog Subscriber Line Interfaces in Analog Key Systems and Digital ISDN PABX Systems
Documentation
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Type | Title | Date |
Datasheet | PDF 837 KB | |
Application Note | PDF 1.24 MB | |
Manual - Development Tools | PDF 135 KB | |
Application Note | PDF 615 KB | |
Application Note | PDF 732 KB | |
Application Note | PDF 284 KB | |
6 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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