CPC5712 Voltage Monitor with Detectors INTEGRATED CIRCUITS DIVISION Features Description CPC5712 Outputs: The CPC5712 is a special purpose Voltage Monitor Two Independent Programmable Level Detectors with Detectors integrated circuit that is used in various with Programmable Hysteresis high-voltage telephony applications such as VoIP Fixed-Level Polarity Detector with Hysteresis gateways and IP-PBXs. The device monitors the Differential Linear Output TIP/RING potential through a high-impedance divider Minimum External Components (resistor isolation) to derive two programmable signal Excellent Common-Mode Rejection Ratio level detects, polarity information, and a scaled (CMRR) > 55dB representation of the phone line voltages. In use, the Application circuits meet isolation requirements of resistor divider and the high input impedance of the worldwide telephony standards CPC5712 make the circuit practically undetectable on Worldwide telephone network compatibility the line. Single Supply Operation, 3.0V to 5.5V High differential input impedance The two voltage-level detects are programmed with Very low common-mode input impedance external resistors, which gives the designer complete Fixed Gain freedom with respect to line voltage detection levels. TTL Compatible CMOS Logic Level outputs The level settings also have programmable hysteresis Small SOP 16-Pin package to prevent false triggering conditions. Detection of these levels allows the user to determine the condition of the line. Applications VoIP Gateways, IP-PBX, xDSL This device can also be used in non-telephony TIP/RING Monitoring applications such as instrumentation and industrial Line-In-Use Detection controls, especially when a low-level differential level Polarity Detection for Caller ID, Enhanced 911 needs to be detected in the presence of a large Battery Detection, PSTN Check common-mode voltage. Non-telephony voltage level detection applications Instrumentation Ordering Information Industrial Controls Part Description Pb e3 CPC5712U 16-Pin SOP (100/Tube) CPC5712UTR 16-Pin SOP (2000/Reel) CPC5712 With Support Components V+ 1 V CC CPC5712 OUT+ 5 R + Analog Output IN1 7 IN+ TIP + R DIFF G = 5 8 IN- RING - OUT - 6 R - Analog Output IN2 POLARITY 4 Polarity Output OUT+ 3 DET1 Voltage Level Detect 1 DET2 2 Voltage Level Detect 2 V V V V V REF L1 H1 L2 H2 GND 14 16 15 9 10 11 12 13 R1 R2 R3 R4 R5 DS-CPC5712-R02 www.ixysic.com 1CPC5712 INTEGRATED CIRCUITS DIVISION 1. Specifications 3 1.1 Package Pinout . 3 1.2 Pin Description 3 1.3 Absolute Maximum Ratings 3 1.4 ESD Rating 3 1.5 Recommended Operating Conditions 4 1.6 Electrical Characteristics 4 2. Functional Description . 5 2.1 Overview 5 2.2 Line Side Interface . 5 2.3 Monitor Output 5 2.4 Detector Outputs 5 2.5 Detector Threshold Operation 6 2.6 Power Connections 6 3. Design Example . 7 3.1 Line Interface . 8 3.2 Differential Input Resistor 8 3.3 Voltage Detector Design 8 3.3.1 Calculate Resistor Values 8 3.3.2 Verify Resistor Selection . 9 3.4 High Voltage Detection Designs 9 4. Manufacturing Information . 10 4.1 Moisture Sensitivity . 10 4.2 ESD Sensitivity 10 4.3 Reflow Profile 10 4.4 Board Wash . 10 4.5 CPC5712U 16-Pin SOP Package 11 4.6 CPC5712UTR Tape and Reel Packaging 11 2 www.ixysic.com R02