Intersil HC-5509B
The HC-5509B3999-003 telephone Subscriber Line Interface Circuit integrates most of the BORSCHT functions on a monolithic IC. The device is manufactured in a Dielectric Isolation (DI) process and is designed for use as a high voltage interface between the traditional telephone subscriber pair (Tip and Ring) and the low voltage filtering and coding/decoding functions of the line card. The SLIC also maintains specified transmission performance in the presence of externally induced longitudinal currents.| Part No. | HC-5509B |
|---|---|
| Datasheet | HC-5509B Download |
| Manufacturer |  Intersil |
| Description | SLIC Subscriber Line Interface Circuit |
| Buy | Stock & Price |
DESCRIPTION
Together with a secondary protection diode bridge and “feed” resistors, the device will withstand 1000V lightning induced surges, in plastic packages. The BORSCHT functions that the SLIC provides are:● Battery Feed with Subscriber Loop Current Limiting
● Overvoltage Protection
● Ring Relay Driver
● Supervisory Signaling Functions
● Hybrid Functions (with External Op-Amp)
● Test (or Battery Reversal) Relay Driver In addition, the SLIC provides selective denial of power to subscriber loops, a programmable subscriber loop current limit from 20mA to 60mA, a thermal shutdown with an alarm output and line fault protection. Switch hook detection, ring trip detection and ground key detection functions are also incorporated in the SLIC device. The HC-5509B3999-003 SLIC is ideally suited for line card designs in PBX and CO systems, replacing traditional transformer solutions. March 1996
FEATURES
● DI Monolithic High Voltage Process● Compatible with Worldwide PBX and CO Performance...
