复位ic max824teuk max824

品牌 maxim 型号 max824teuk+t max824teuk max824
批号 0903+pb 封装 sot23-5
营销方式 直销 产品性质 热销
处理信号 模拟信号 工艺 半导体集成
导电类型 双极型 集成程度 大规模
规格尺寸 sot-23(mm) 工作温度 -40~85(℃)

5引脚、微处理器监控电路,带有看门狗定时器及手动复位

 

业内首款sot复位ic,带有看门狗和手动复位功能

概述
the max823/max824/max825* microprocessor (µp) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin sot23 and sc70 packages. they significantly improve system reliability and accuracy compared to separate ics or discrete components. the max823/max824/max825 are specifically designed to ignore fast transients on vcc.

seven preprogrammed reset threshold voltages are available (seereset threshold table). all three devices have an active-low reset output, which is guaranteed to be in the correct state for vccdown to 1v. the max823 also offers a watchdog input and manual reset input. the max824 offers a watchdog input and a complementary active-high reset. the max825 offers a manual reset input and a complementary active-high reset. the selector guide explains the functions offered in this series of parts.

关键特性 应用/使用
  • precision monitoring of +2.5v, +3v, +3.3v, and +5v power supplies
  • operating current:
    • 6µa (max823l/m) (sc70)
    • 2µa (max825t/s/r/z/y) (sc70)
  • fully specified over temperature
  • 140ms min power-on reset
  • guaranteed active-low reset valid to vcc= 1v
  • power-supply transient immunity
  • watchdog timer with 1.6s timeout (max823/max824)
  • manual reset input (max823/max825)
  • no external components