MAX6827数据手册集成电路（IC）的监控器规格书PDF

描述 Description

The MAX6826—MAX6831 are ultra-low-voltage microprocessor (µP) supervisory circuits designed to monitor two power supplies and have manual reset and watchdog input functions. These devices assert a system reset if any of the monitored supplies fall below the preprogrammed thresholds, and maintain reset for a minimum timeout period after the supplies rise above the threshold. Microprocessor supervisors significantly improve system reliability and accuracy compared to separate ICs or discrete components. These devices monitor primary voltages from +1.8V to +5.0V and secondary voltages from +0.9V to +2.5V. These devices are guaranteed to be in the correct state for VCC down to +1.0V.
A variety of preprogrammed reset threshold voltages are available (see the Threshold Suffix Guide). The devices include manual reset and watchdog inputs. The MAX6829/MAX6830/MAX6831 provide a factory-trimmed threshold to monitor a 2nd voltage down to +0.9V. The MAX6826/MAX6829 have a push-pull active-low RESET, the MAX6827/MAX6830 have a push-pull RESET and the MAX6828/MAX6831 have an open-drain active-low RESET. The MAX6826/MAX6827/MAX6828 have an auxiliary monitor that allows user adjustable input to monitor voltages down to +0.6V. See Selector Guide for functions available.

特性 Features

• Monitor Primary VCC Supplies from +1.8V to +5.0V and Secondary VCC2 Supplies from +0.9V to +2.5V
• User Adjustable RESET IN Down to +0.63V (MAX6826/MAX6827/MAX6828)
• 140ms (min) Reset Timeout Delay
• 1.6s Watchdog Timeout Period
• Manual Reset Input
• Three Reset Output Options
• Push-Pull active-low RESET
• Push-Pull RESET
• Open-Drain active-low RESET
• Guaranteed Reset Valid Down to VCC = +1.0V
• Immune to Short Negative VCC Transients
• No External Components
• Small 6-pin SOT23 Packages

应用 Application

• 精确的µP监控
• 嵌入式控制器
• 智能仪表
• 多电压系统
• 便携式/电池供电设备

简介

MAX6827属于集成电路（IC）的监控器。由制造生产的MAX6827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。