MAX802中文资料3.0V/3.3V微处理器监控电路数据手册ADI规格书

描述 Description

These microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in µP systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components.
These devices are designed for use in systems powered by 3.0V or 3.3V supplies. See the selector guide in the back of this data sheet for similar devices designed for 5V systems. The suffixes denote different reset threshold voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (see Reset Threshold section in the Detailed Description). All these parts are available in 8-pin DIP and SO packages. Functions offered in this series are as follows:
Part Active-Low Reset Active-High Reset Watchdog Input Manual Reset Input Backup-Battery Switch Power-Fail Threshold Accuracy Power-Fail Comparator Reset Window MAX690 √   √   √ ±4% √ ±75mV MAX704 √     √ √ ±4% √ ±75mV MAX802 √   √   √ ±2% √ ±2% MAX804   √ √   √ ±2% √ ±2% MAX805   √ √   √ ±4% √ ±75mV MAX806 √     √ √ ±2% √ ±2%

特性 Features

• Active-Low RESET and RESET Outputs
• Manual Reset Input
• Precision Supply-Voltage Monitor
• 200ms Reset Time Delay
• Watchdog Timer (1.6sec timeout)
• Battery-Backup Power Switching-Battery Can Exceed VCC in Normal Operation
• 40µA VCC Supply Current
• 1µA Battery Supply Current
• Voltage Monitor for Power-Fail or Low-Battery Warning
• Guaranteed Active-Low RESET Assertion to VCC = 1V
• 8-Pin DIP and SO Packages

应用 Application

• 电池供电计算机/控制器
• 精确的µP监控
• 嵌入式控制器
• 智能仪表
• 便携式设备

简介

MAX802属于集成电路（IC）的监控器。由ADI制造生产的MAX802监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。