MIC812集成電路（IC）的監(jiān)控器規(guī)格書PDF中文資料

MIC812屬于集成電路（IC）的監(jiān)控器。由微芯科技股份有限公司制造生產(chǎn)的MIC812監(jiān)控器PMIC 監(jiān)控器用于監(jiān)視和/或控制電路中的電壓軌，能夠連接微控制器以維持一定的功率限值。監(jiān)控器類型包括電池備用電路、監(jiān)控器、多電壓監(jiān)控器、電源監(jiān)控器、穩(wěn)壓器/監(jiān)控器、復(fù)位計(jì)時(shí)器、定序器、簡單復(fù)位/上電復(fù)位、智能開/關(guān)控制器、系統(tǒng)管理器、電壓檢測器和看門狗電路。

General Description

The MIC811 and MIC812 are inexpensive

microprocessor supervisory circuits that monitor power

supplies in microprocessor based systems.

The function of this device is to assert a reset if either

the power supply drops below a designated reset

threshold level or /MR is forced low. Several different

reset threshold levels are available to accommodate

3V, 3.3V, or 5V powered systems.

The MIC811 has an active-low /RESET output, while

the MIC812 offers an active-high RESET output. The

reset output remains asserted for a minimum of 140 ms

after VCC has risen above the designed reset threshold

level. Having a push-pull output stage, the MIC811/812

do not require a pull-up resistor at the output. The

MIC811 and MIC812 come in a 4-lead SOT-143

package.

If a microprocessor voltage supervisor with an

open-drain output stage is needed, see MIC6315.

Features

? Precision Voltage Monitor for 3V, 3.3V, or 5V

Power Supplies

? /RESET Remains Valid with VCC as Low as 1V

? 5 μA Typical Supply Current

? 140 ms Minimum Reset Pulse Width Available

? Manual Reset Input

? Available in 4-Lead SOT-143 Package

Applications

? Portable Equipment

? Intelligent Instruments

? Critical Microprocessor Power Monitoring

? Printers/Computers

? Controllers