MAX6702A中文资料低电压、SOT23封装、微处理器监控电路，带有电源失效检测输入/输出、手动复位及看门狗定时器数据手册ADI规格书

描述 Description

The MAX6701—MAX6708 microprocessor (µP) supervisory circuits reduce the complexity and components required to monitor power-supply functions in µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.
The MAX6701—MAX6708 family provides four functions: a reset output during power-up, power-down, and brownout conditions; an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s; a 0.62V threshold detector for power-fail warning; and an active-low manual reset input.
The MAX6701—MAX6708 family offers several pinout options to accommodate a variety of multivoltage microprocessor supervision applications.
The MAX6701(A)/MAX6702(A)/MAX6703(A) monitor three supply voltages (one fixed threshold and two adjustable) to drive a single reset output and include a manual reset input and a watchdog timer with an independent output. The MAX6704 monitors a single-supply voltage to drive complementary reset outputs and includes an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a reset-based watchdog timer. The MAX6705(A)/MAX6706(A)/MAX6707(A) monitor a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator, a manual reset input, and a watchdog timer with an independent output. The MAX6708 is the same as the MAX6704 but without the watchdog timer function.
See the Detailed Description for differences between non-A and A versions.

特性 Features

• Small 8-Pin SOT23 Package
• Precision Monitoring of +5.0V, +3.3V, +3.0V, +2.5V Supply Voltages
• 140ms Reset Timeout Delay
• Power-Fail Input with Independent Output; Monitor Inputs Down to 0.62V (MAX6704—MAX6708)
• Dual Adjustable Reset Input for Triple-Voltage Monitoring (MAX6701(A)/MAX6702(A)/MAX6703(A))
• 1.6s Watchdog Timeout Period (MAX6701(A)—MAX6707(A))
• Independent Watchdog Output (MAX6701(A)/MAX6702(A)/MAX6703(A)/MAX6705(A)/MAX6706(A)/MAX6707(A))
• Manual Reset Input
• Four Reset Output Stage Options
• Active Low Push-Pull (MAX6701(A), MAX6705(A))
• Active Low Open Drain (MAX6703(A), MAX6707(A))
• Active High Push-Pull (MAX6702(A), MAX6706(A))
• Dual Active Low/High Push-Pull (MAX6704, MAX6708)
• Guaranteed Reset Valid to VCC = 1V
• Immune to Short Falling VCC Transients
• Low Cost, Few External Components

应用 Application

• 计算机
• 控制器
• 精确的µP电源监控
• 智能仪表
• 网络
• 电信
• 白色家电

简介

MAX6702A属于集成电路（IC）的监控器。由制造生产的MAX6702A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。