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双/三电压微处理器监控电路

业内首款多电压监控电路,采用SOT封装

产品详情

主要特征

应用/用途

Parametric specs for Supervisors (3 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 1.5
Reset Out Active Low
Push-Pull
Interface Factory Fixed
R/C Adjustable
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
Manual Reset
ICC (µA) (max) 50
Package/Pins SOT23/6
Budgetary
Price (See Notes)
1.6
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简化框图

技术文档

数据资料 双/三电压微处理器监控电路 Jul 24, 2014

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参量

Parametric specs for Supervisors (3 Monitored Voltages)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 1.5
Reset Out Active Low
Push-Pull
Interface Factory Fixed
R/C Adjustable
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Adjustable Reset Input
Manual Reset
ICC (µA) (max) 50
Package/Pins SOT23/6
Budgetary
Price (See Notes)
1.6

主要特征

  • Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V, +3.3V, and +5V Power-Supply Voltages
  • Precision Factory-Set Power-Supply Reset Thresholds
  • 20µA Supply Current
  • 100ms min Power-On Reset Pulse Width
  • Debounced TTL/CMOS-Compatible Manual-Reset Input
  • Watchdog Timer
    • 46.4s Startup Timeout
    • 2.9s Normal Timeout
  • Fully Guaranteed Over Temperature
  • Guaranteed RESET-bar Valid to VCC1 = 1V or VCC2 = 1V
  • Power-Supply Transient Immunity
  • No External Components for Dual-Voltage Systems
  • Small 5- and 6-Pin SOT23 Packages
  • Low Cost

应用/用途

  • 计算机
  • 控制器
  • 智能仪表
  • 多电压供电设备
  • 便携式电池供电

描述

The MAX6351-MAX6360 microprocessor (µP) supervisors with multiple reset voltages significantly improve system reliability and accuracy compared to separate ICs or discrete components. If any input supply voltage drops below its associated preset threshold, all reset outputs are asserted. In addition, the outputs are valid as long as either input supply voltage remains greater than +1.0V.

All devices in this series have an active-low debounced manual reset input. In addition, the MAX6358/MAX6359/MAX6360 offer a watchdog-timer input with a 46.4s startup timeout period and a 2.9s timeout period. The MAX6355/MAX6356/MAX6357 offer an additional voltage monitor input to monitor a third voltage.

The MAX6351 features two active-low, push-pull reset outputs, one is referenced to VCC1 and the other is referenced to VCC2. The MAX6353/MAX6356/MAX6359 offer an active-low, push-pull reset output referenced to VCC1. The MAX6354/MAX6357/MAX6360 offer an active-low, push-pull reset output referenced to VCC2.

All these devices are offered with a wide variety of voltage threshold levels, as shown in the Voltage Threshold Levels table. They are available in 5- and 6-pin SOT23 packages and operate over the extended (-40°C to +85°C) temperature range.

简化框图

MAX6351、MAX6352、MAX6353、MAX6354、MAX6355、MAX6356、MAX6357、MAX6358、MAX6359、MAX6360:功能框图 MAX6351、MAX6352、MAX6353、MAX6354、MAX6355、MAX6356、MAX6357、MAX6358、MAX6359、MAX6360:功能框图 Zoom icon

技术文档

数据资料 双/三电压微处理器监控电路 Jul 24, 2014

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心