ADCMP361YRJ Analog Devices

Single 0.275% Comparator and Reference with Dual Polarity Outputs ADCMP361 FEATURES FUNCTIONAL BLOCK DIAGRAM 400 mV 0.275% threshold V DD Supply range: 1.7 V to 5.5 V ADCMP361 Low quiescent current: 6.5 A typical IN Input range includes ground OUT Internal hysteresis: 9.3 mV typical Low input bias current: 5 nA maximum 400mV OUT Dual open-drain outputs Small SOT-23 package Qualified for automotive applications GND APPLICATIONS Figure 1. Li-Ion monitoring Threshold detectors Relay driving Optoisolator driving Industrial control systems Handheld instruments GENERAL DESCRIPTION The ADCMP361 is a single low power, high accuracy compara- R1 R3 tor with a 400 mV reference in a 5-lead SOT-23 package. The 4.7M V ADCMP361 DD 1M internal 400 mV reference provides the ability to monitor low IN + + 3V OUT voltage supplies. The device operates on a supply voltage from Li-Ion CELL R2 1.7 V to 5.5 V and only draws 6.5 A typical, making it suitable 1M OUT for low power system monitoring and portable applications. 400mV Hysteresis is included in the comparators. C1 GND 100nF There are dual open-drain outputs to enable the comparator and reference circuit to be used in an inverting or noninverting Figure 2. Typical Li-Ion Monitoring Application configuration. The outputs can be pulled to any voltage up to a maximum of 5.5 V. The output stage is guaranteed to sink greater than 5 mA over temperature DISCHARGING The device is suitable for portable, commercial, industrial, and V BATT automotive applications. CHARGING 2.280V 2.271V V OUT Figure 3. Li-Ion Monitoring Waveforms Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 20072011 Analog Devices, Inc. All rights reserved. 06496-001 06496-030 06496-029ADCMP361 TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Application Information ................................................................ 11 Functional Block Diagram .............................................................. 1 Comparators and Internal Reference ...................................... 11 General Description ......................................................................... 1 Power Supply ............................................................................... 11 Revision History ............................................................................... 2 Inputs ........................................................................................... 11 Specif icat ions ..................................................................................... 3 Outputs ........................................................................................ 11 Absolute Maximum Ratings ............................................................ 4 Adding Hysteresis....................................................................... 11 Thermal Characteristics .............................................................. 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 Automotive Products ................................................................. 12 REVISION HISTORY 3/11Rev. 0 to Rev. A Changes to Features Section............................................................ 1 Changes to Adding Hysteresis Section ........................................ 11 Added Figure 31, Renumbered Sequentially .............................. 10 Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 12 Added Automotive Products Section .......................................... 12 2/07Revision 0: Initial Version Rev. A Page 2 of 12