IXYS CPC7581
The CPC7581 is a monolithic solid-state four-pole switch in a 16-pin package. It provides the necessary functions to replace a 2-Form-C electromechanical relay on traditional analog and integrated voice and data (IVD) line cards found in central office, access, and PBX equipment. The CPC7581 contains solid-state switches for tip and ring lead line break and ringing injection/ringing return.FEATURES
● Low, Matched RON● Eliminates the Need for Zero-Cross Switching
● 5V Operation With Power Consumption < 10 mW
● Flexible Switch Timing for Transition from Ringing Mode to Idle/Talk Mode
● Clean, Bounce-Free Switching
● Tertiary Protection Consisting of Integrated Current Limiting, Thermal Shutdown for SLIC Protection
● Intelligent Battery Monitor
● Latched Logic-Level Inputs, No External Drive Circuitry Required
● SOIC Package Pin-Compatible With Legerity Product
● Small 16-pin SOIC Package
● Monolithic IC reliability
APPLICATIONS
● Central Office (CO)● Digital Loop Carrier (DLC)
● PBX Systems
● Digitally Added Main Line (DAML)
● Hybrid Fiber Coax (HFC)
● Fiber in the Loop (FITL)
● Pair Gain System
● Channel Banks Figure 1. CPC7581 Block Diagram
DESCRIPTION
The device requires only a +5 V supply, and offers break-before-make and make-before-break operation using logic-level inputs. The CPC7581BA versions include an SCR that provides protection to the SLIC and subsequent circuitry during a fault condition.