MAX702:电源监测器,带有复位

上电复位 + 手动复位

The MAX700/MAX701/MAX702 are supervisory circuits used to monitor the power supplies in microprocessor (µP) and digital systems. The active-low RESET/RESET outputs of the MAX700/MAX701/MAX702 are guaranteed to be in the correct state for VCC voltages down to +1V (Figure 4). They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V-powered circuits. The MAX702 is the simplest part in the family. When VCC falls to 4.65V, active-low RESET goes low. The MAX702 also provides a debounced manual reset input. The MAX701 performs the same functions but has both active-low RESET and RESET outputs. Their primary function is to provide a system reset. Accordingly, an active reset signal is supplied for low supply voltages and for at least 200ms after the supply voltage reaches its operating value. In addition to the features of the MAX701 and MAX702, the MAX700 provides preset or adjustable voltage detection so thresholds other than 4.65V can be selected, and adjustable hysteresis. All parts are supplied in 8-pin PDIP and Narrow SO packages in commercial and extended temperature ranges.

关键特性
  • Min 200ms Active-Low RESET Pulse on Power-Up, Power-Down, and During Low-Voltage Conditions
  • Reset Threshold Factory Trimmed for +5V Systems
  • No External Components or Adjustments with +5V-Powered Circuits
  • Debounced Manual Reset Input
  • Preset or Adjustable Voltage Detection (MAX700)
  • Adjustable Hysteresis (MAX700)
  • 8-Pin PDIP and Narrow SO Packages
MAX700、MAX701、MAX702:引脚配置
MAX700、MAX701、MAX702:引脚配置
应用
  • 计算机
  • 控制器
  • 精确的µP电源监控
  • 智能仪表
数据手册DataSheet
语言下载文件备注
英文MAX700-MAX702.pdfRev 3; 08/2014
关键参数
Part NumberReset Thresh.
(V)
Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)
ICC
(µA)
Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX700
  • 1.2 to 1.8
  • 1.8 to 2.5
  • 2.5 to 3.3
  • 3.3 to 5.5
  • Active High
  • Active Low
  • Push-Pull
85ms to 300msNo WatchdogManual Reset2.5200
  • PDIP(N)/8
  • SOIC(N)/8
$2.91 @1k
MAX7013.3 to 5.5
  • Active High
  • Active Low
  • Push-Pull
  • PDIP(N)/8
  • SOIC(N)/8
$2.62 @1k
MAX7023.3 to 5.5
  • Active Low
  • Push-Pull
  • PDIP(N)/8
  • SOIC(N)/8
$2.91 @1k
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订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX702C/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX702CPA停止供货MAX702CPA+PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:否
MAX702CPA+生产中PDIP(N),;8引脚;79.7mm²0°C至+70°CRoHS/无铅:无铅
MAX702CSA停止供货MAX702CSA+SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:否
MAX702CSA+生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX702CSA+T生产中SOIC(N),;8引脚;30.9mm²0°C至+70°CRoHS/无铅:无铅
MAX702CSA-T停止供货MAX702CSA+TN.SO;8引脚0°C至+70°C参考数据资料
MAX702EPA停止供货MAX702EPA+PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:否
MAX702EPA+生产中PDIP(N),;8引脚;79.7mm²-40°C至+85°CRoHS/无铅:无铅
MAX702ESA停止供货MAX702ESA+SOIC(N),;8引脚;30.9mm²-40°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?
MAX702ESA+生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX702ESA+T生产中SOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX702ESA-T停止供货MAX702ESA+TSOIC(N),;8引脚;30.9mm²-40°C至+85°CRoHS/无铅:否
MAX700-MAX702.pdf MAX702
MAX700-MAX702.pdf MAX702