IC元器件

LM809M3-2.63/NOPB

参考价格:¥1.58-¥5.59

电源管理 IC

LM809M3-2.63/NOPB 供应商

LM809M3-2.63/NOPB 属性参数

  • 制造商:National Semiconductor (TI)
  • 监测电压数:1
  • 监测电压:2.63 V
  • 欠电压阈值:2.55 V
  • 过电压阈值:3 V
  • 输出类型:Active Low
  • 人工复位:Not Resettable
  • 监视器:No Watchdog
  • 电池备用开关:No Backup
  • 上电复位延迟(典型值):240 ms
  • Supply Voltage - Max:5.5 V
  • Supply Voltage - Min:1.2 V
  • 电源电流(典型值):100 uA
  • 最大功率耗散:320 mW
  • 最大工作温度:+ 105 C
  • 安装风格:SMD/SMT
  • 封装 / 箱体:SOT-23
  • 封装:Reel
  • 最小工作温度:- 40 C
  • 功率失效检测:No
  • 工厂包装数量:1000

产品特性

  • Precision Monitoring of Supply Voltages Available Threshold Options: 2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Available Threshold Options: 2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Superior Upgrade to MAX809 and MAX810
  • Fully Specified Over Temperature
  • 140-ms Minimum Power-On Reset Pulse Width, 240-ms Typical Active-Low RESET Output (LM809) Active-High RESET Output (LM810)
  • Active-Low RESET Output (LM809)
  • Active-High RESET Output (LM810)
  • Ensured RESET Output Valid for VCC ≥ 1 V
  • Low Supply Current, 15-µA Typical
  • Power Supply Transient Immunity

产品概述

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.The function of the LM809 and LM810 are to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCC rises above the threshold. The LM809 has an active-low RESET output, while the LM810 has an active-high RESET output.Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.

LM809M3-2.63/NOPB 电路图