LM809 - 3 引脚微处理器重置电路

LM809是TI德州仪器公司的一款无产品，LM809是3 引脚微处理器重置电路，本站介绍了LM809的封装应用图解、特点和优点、功能等，并给出了与LM809相关的TI元器件型号供参考。

LM809 - 3 引脚微处理器重置电路 - 无 - 监控器和复位IC - 德州仪器

产品描述

The LM809/810 microprocessor 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 LM809/810 is 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 240ms 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 5V, 3.3V, and 3V supply voltages.

With a low supply current of only 15µA, the LM809/810 are ideal for use in portable equipment. The LM809/LM810 are available in the 3-pin SOT-23 package and in the 6-Lead SON package.

产品特性

Precise Monitoring of 3V, 3.3V, and 5V Supply Voltages
Superior Upgrade to MAX809/810
Fully Specified Over Temperature
140ms Min. Power-On Reset Pulse Width, 240ms Typical
- Active-Low RESET Output (LM809)
- Active-High RESET Output (LM810)
Ensured RESET Output Valid for VCC≥1V
Low Supply Current, 15µA Typ
Power Supply Transient Immunity

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