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
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
语言下载文件备注
英文MAX8211-MAX8212.pdfRev 5; 09/2008
关键参数
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX8211
  • 1.2 to 1.8
  • 1.8 to 2.5
  • 2.5 to 3.3
  • 3.3 to 5.5
  • Active Low
  • Open Drain
<1msNo WatchdogHigh Voltage (>6V)315
  • µMAX/8
  • CDIP(N)/8
  • FPCK/10
  • PDIP(N)/8
  • SOIC(N)/8
  • TO99/8
$1.96 @1k
MAX8212
  • µMAX/8
  • CDIP(N)/8
  • PDIP(N)/8
  • SOIC(N)/8
  • TO99/8
$1.83 @1k
技术资料
质量和环境数据
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
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX8212CPA停止供货MAX8212CPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX8212CPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX8212CSA停止供货MAX8212CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX8212CSA+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX8212CSA+T生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX8212CSA-T停止供货MAX8212CSA+TN.SO;8引脚0°C至+70°C参考数据资料
MAX8212CTY停止供货TO99,;8引脚;88.4mm²0°C至+70°CRoHS/无铅:否
MAX8212CTY-2生产中TO99,;8引脚;88.4mm²0°C至+70°CRoHS/无铅:否
MAX8212CUA停止供货MAX8212CUA+µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX8212CUA+生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX8212CUA+T生产中µMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:无铅
MAX8212CUA-T停止供货MAX8212CUA+TµMAX,;8引脚;15.6mm²0°C至+70°CRoHS/无铅:否
MAX8212EJA停止供货CDIP(N),;8引脚;82.6mm²-40°C至+85°CRoHS/无铅:否
MAX8212EPA停止供货MAX8212EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX8212EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX8212ESA停止供货MAX8212ESA+SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX8212ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX8212ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX8212ESA-T停止供货MAX8212ESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX8212ETY停止供货TO99,;8引脚;88.4mm²-40°C至+85°CRoHS/无铅:否
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX8212MJA生产中CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX8212MJA/883B生产中CDIP(N),;8引脚;82.6mm²-55°C至+125°CRoHS/无铅:否
MAX8212MTV停止供货TO99,;8引脚;88.4mm²-55°C至+125°CRoHS/无铅:否
MAX8212MTV/883B停止供货GOLD C;8引脚-55°C至+125°C参考数据资料
MAX8212MTV/HR停止供货TO99,;8引脚;88.4mm²-55°C至+125°CRoHS/无铅:否
MAX8212MTY生产中TO99,;8引脚;88.4mm²-55°C至+125°CRoHS/无铅:否
MAX8211-MAX8212.pdf MAX8212
Simple Circuit Disconnects Load From Battery MAX8212
MAX8212.pdf MAX8212
MAX8211-MAX8212.pdf MAX8212