MIC809中文资料3-Pin Microprocessor Reset Circuit with Push-Pull Active-Low Output, 2.93 Vthresh数据手册Microchip规格书

描述 Description

The MIC809 and MIC810 are inexpensive microprocessor supervisory circuits that monitor power supplies in microprocessor based systems.The function of these devices is to assert a reset if the power supply drops below a designated reset threshold level. Several different reset threshold levels are available to accommodate 3V, 3.3V or 5V powered systems.The MIC809 has an active-low /RESET output, while the MIC810 offers an active-high RESET output. The reset output is guaranteed to remain asserted for a minimum of 140ms after VCC has risen above the designated reset threshold level. Having a push-pull output stage, the MIC809/810 does not require a pull-up resistor at the output. The MIC809/810 comes in a 3-pin SOT-23 and SC-70 package.The MIC809 is also available with a shorter reset timeout (30ms min.). See the MIC809-5.

特性 Features

•Precision voltage monitor for 3V, 3.3V or 5V power supplies
•/RESET remains valid with VCC as low as 1.4V for SOT-23 packaged part
•/RESET remains valid with VCC as low as 1V for SC-70 packaged part
•Typically less than15μA supply current for SOT-23 packaged part
•5μ  typical supply current for SC-70 packaged part
•140ms minimum reset pulse widths available
•Available in 3-pin SOT-23 and SC-70 package

简介

MIC809属于集成电路（IC）的监控器。由制造生产的MIC809监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。