描述 Description

The CAT823, CAT824, and CAT825 provide basic reset and monitoring functions for the electronic systems. Each device monitors the system voltage and maintains a reset output until that voltage reaches the device's specified trip value and then maintains the reset output active condition until the device's internal timer, after a minimum timer of 140 ms; to allow the systems power supply to stabilize.The CAT823 and CAT824 also have a watchdog input which can be used to monitor a system signal and cause a reset to be issued if the signal fails to change state prior to a timeout condition.The CAT823 and CAT825 also provide a manual reset input which can be used to initiate reset if pulled low. This input can be directly attached to a push-button or a processor signal.

特性 Features

? Automatically Restarts Microprocessor after Power Failure
? Monitors Pushbutton for Eexternal Override
? Accurate Under Voltage System Monitoring
? Brownout Detection System Reset for use with 3.0, 3.3, and 5.0 Volt Systems
? Pin and Function Compatible with the MAX823/24/25 Products
? Operating Range from -40°C to +85°C
? Available in TSOT-23 5-lead and SC-70 Packages
? These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

應(yīng)用 Application

? Microprocessor and Microcontroller Based Systems
? Intelligent Instruments
? Control Systems
? Critical μP Monitors
? Portable Equipment

簡介

CAT823屬于集成電路（IC）的監(jiān)控器。由制造生產(chǎn)的CAT823監(jiān)控器PMIC 監(jiān)控器用于監(jiān)視和/或控制電路中的電壓軌，能夠連接微控制器以維持一定的功率限值。監(jiān)控器類型包括電池備用電路、監(jiān)控器、多電壓監(jiān)控器、電源監(jiān)控器、穩(wěn)壓器/監(jiān)控器、復位計時器、定序器、簡單復位/上電復位、智能開/關(guān)控制器、系統(tǒng)管理器、電壓檢測器和看門狗電路。