6引脚、微处理器复位电路，带有电源失效比较器

 

器件号	Replacement	Explanation

说明

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The MAX6342-MAX6345 family of microprocessor (µP) supervisory circuits monitors power supplies in digital systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.

The MAX6342-MAX6345 provide factory-trimmed V_CC reset threshold voltages from 2.33V to 4.63V and operate with supply voltages between +1V and +5.5V. A +1.25V threshold detector allows for a power-fail warning, for low-battery detection, or for monitoring another power supply. The MAX6342 contains an active-low MR input and an active-low push-pull reset. The MAX6343 and MAX6344 are identical to the MAX6342 except they provide an active-low, open-drain reset and an active-high, push-pull reset, respectively. The MAX6345 provides a second reset output in place of the active-low MR input to give it an active-high push-pull reset and an active-low push-pull reset.

All of the devices are packaged in a miniature 6-pin SOT23.

MAX6342、MAX6343、MAX6344、MAX6345：典型工作电路 放大+

关键特性

• Small 6-Pin SOT23 Package
• Precision Factory-Set V_CC Reset Thresholds Between 2.33V and 4.63V
• Guaranteed Active-Low RESET Valid to V_CC = +1V
• 100ms min Reset Pulse Width
• Debounced CMOS-Compatible Manual-Reset Input
• Voltage Monitor for Power-Fail or Low-Battery Warning

应用

• 嵌入式控制系统
• 多电压系统
• 网络设备
• 便携式电池供电设备
• 便携式计算机
• 电信设备