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MAX8212：微处理器电压监测器，可编程检测电压

Maxim's MAX8211 and MAX8212 are CMOS micropower voltage detectors that warn microprocessors (µPs) of power failures. Each contains a comparator, a 1.5V bandgap reference, and an open-drain n-channel output driver. Two external resistors are used in conjunction with the internal reference to set the trip voltage to the desired level. A hysteresis output is also included, allowing the user to apply positive feedback for noise-free output switching. The MAX8211 provides a 7mA current-limited output sink whenever the voltage applied to the threshold pin is less than the 1.5V internal reference. In the MAX8212, a voltage greater than 1.5V at the threshold pin turns the output stage on (no current limit). The CMOS MAX8211/MAX8212 are plug-in replacements for the bipolar ICL8211/ICL8212 in applications where the maximum supply voltage is less than 16.5V. They offer several performance advantages, including reduced supply current, a more tightly controlled bandgap reference, and more available current from the hysteresis output.

关键特性 µP Power-Fail Warning Improved 2nd Source for ICL8211/ICL8212 Low-Power CMOS Design 5µA Quiescent Current On-Board Hysteresis Output ±40mV Threshold Accuracy (±3.5%) 2.0V to 16.5V Supply-Voltage Range Define Output Current Limit (MAX8211) High Output Current Capability (MAX8212)

MAX8211、MAX8212：典型工作电路 应用 µP电压监视 备用电池切换 低电池检测 过压检测 电源故障监视 欠压检测

数据手册DataSheet

关键参数

技术资料

• Simple Circuit Disconnects Load From Battery

质量和环境数据

• MAX8212.pdf

相关产品

• MAX6808：电压检测器
• MAX6806：电压检测器
• MAX6807：电压检测器
• MAX835：微功耗、具有锁存功能的电压监测器，SOT23-5封装
• MAX834：微功耗、具有锁存功能的电压监测器，SOT23-5封装
• MAX836：4引脚、微功耗电压监测器
• MAX837：4引脚、微功耗电压监测器
• MAX8213：五路通用电压监测器，支持完备的微处理器电压监测
• MAX8214：五路通用电压监测器，支持完备的微处理器电压监测
• ICL7665：微处理器电压监测器，带有双路过压/欠压检测
• MAX8215：±5V、±12V (±15V)专用微处理器电压监测器
• MAX8216：±5V、±12V (±15V)专用微处理器电压监测器

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