HC5515

HC5515 Data Sheet October 1998 File Number 4235.4 ITU CO/PABX SLIC with Low Power Standby The HC5515 is a subscriber line interface circuit which is interchangeable with Ericsson’s PBL3860 for distributed central office applications. Enhancements include immunity to circuit latch-up during hot plug and absence of false signaling in the presence of longitudinal currents. The HC5515 is fabricated in a High Voltage Dielectrically Isolated (DI) Bipolar Process that eliminates leakage currents and device latch-up problems normally associated with junction isolated ICs. The elimination of the leakage currents results in improved circuit performance for wide temperature extremes. The latch free benefit of the DI process guarantees operation under adverse transient conditions. This process feature makes the HC5515 ideally suited for use in harsh outdoor environments. Features DI Monolithic High Voltage Process Programmable Current Feed (20mA to 60mA) Programmable Loop Current Detector Threshold and Battery Feed Characteristics Ring Trip Detection Compatible with Ericsson’s PBL3860 Thermal Shutdown On-Hook Transmission Wide Battery Voltage Range (-24V to -58V) Low Standby Power -40oC to 85oC Ambient Temperature Range Ordering Information PART NUMBER HC5515CM HC5515CP HC5515IM HC5515IP TEMP. RANGE (oC) 0 to 70 0 to 70 -40 to 85 -40 to 85 PACKAGE 28 Ld PLCC 22 Ld PDIP 28 Ld PLCC 22 Ld PDIP PKG. NO. N28.45 E22.4 N28.45 E22.4 Applications Digital Loop Carrier Syste...