MAX810MEU 3引腳微處理器復(fù)位電路

批發(fā)數(shù)量
梯度價(jià)格
型號(hào)
MAX810MEUR
品牌
MAXIM/美信
類型
其他IC
功率
220
用途
電腦
封裝
SOT23
批號(hào)
13+

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概述


The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

These circuits perform a single function: they assert a reset signal whenever the VCCsupply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCChas risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

The MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803\'s open-drain active-low RESET output requires a pullup resistor that can be connected to a voltage higher than VCC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCCdown to 1V.

Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/MAX810 are available in 3-pin SC70 or SOT23 packages

 

 

關(guān)鍵特性


  • Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages
  • Fully Specified Over Temperature
  • Available in Three Output Configurations
    • Open-Drain Active-Low RESET Output (MAX803)
    • Push-Pull Active-Low RESET Output (MAX809)
    • Push-Pull RESET Output (MAX810)
  • 140ms min Power-On Reset Pulse Width
  • 12µA Supply Current
  • Guaranteed Reset Valid to VCC= +1V
  • Power Supply Transient Immunity
  • No External Components
  • 3-Pin SC70 and SOT23 Packages

 

應(yīng)用/使用


  • 汽車電子
  • 計(jì)算機(jī):臺(tái)式機(jī)、工作站和服務(wù)器
  • 控制器
  • 精確的µP與µC電源監(jiān)控
  • 智能儀表
  • 便攜式電池供電設(shè)備