MIC826中文资料Voltage Supervisor with Watchdog Timer, Manual Reset, and Dual Outputs数据手册Microchip规格书

描述 Description

The MIC826 is a low-current, ultra-small, voltage supervisor with manual reset input, watchdog timer, and active-high and active-low push-pull outputs. The reset outputs are asserted and held when the supply voltage falls below the factory-programmed threshold voltage, when the /MR pin is pulled low, or if the watchdog times out. Reset is asserted for the reset timeout delay after the supply voltage increases above the rising threshold voltage or when manual reset input is asserted high.The MIC826 features an integrated pull-up resistor on the /MR. An active-low push-pull reset output (/RESET) and an active-high reset output (RESET) provide flexibility when interfacing with various microcontrollers, PMICs, or load switches. The watchdog input can be left unconnected for applications that do not require watchdog monitoring.The MIC826 consumes a quiescent current of only 3.8μA and is offered in a tiny, space-saving, 6-pin 1.6mm x 1.6mm Thin DFN package. It is rated for the -40°C to +125°C temperature range.

特性 Features

•Precision 1.8V to 5V power supply monitor
• ±1.5% threshold accuracy from TA = -40°C to +125°C
•4.8μA supply current (MIC826L/M)
•140ms (min.) reset timeout period
• Float watchdog timer input to disable watchdog timer
• Guaranteed reset output valid to VCC = 1V
•6-pin 1.6mm x 1.6mm x 0.5mm Thin DFN package
•8x lower watchdog input current than competition

简介

MIC826属于集成电路（IC）的监控器。由制造生产的MIC826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。