描述 Description

The MIC2790/1/3 is ideal for monitoring highly-accurate core voltages that require rapid response in the event of a fault condition. The voltage supervisor IC features a manual reset input, enable input (MIC2793 only), a capacitor-programmable reset timeout delay and both an active-low and active-high reset output.The MIC2790/1/3 monitors system voltages that are in the range of 0.4V to 5.5V, with a typical sense accuracy of 0.5% at +25°C and ±1.0% across ?40°C to +125°C. The IC asserts a reset output when the sense voltage drops below the threshold or when the manual reset is pulled to a logic low. The active-low reset stays low for the duration of the reset timeout delay once the sense voltage returns to normal and the manual reset transitions to a logic high state. The reset timeout delay period is programmable from 1ms to 10s with an external capacitor.The MIC2790/1/3 operates from a low supply voltage of 1.5V to 5.5V, and is rated to operate over the temperature range of ?40°C to +125°C. The MIC2790 is available in a 6-pin TSOT-23 package or a 6-pin 2mm × 2mm × 0.55mm DFN package. The MIC2791 is available in a tiny 6-pin 1.6mm × 1.6mm × 0.55mm DFN package. The MIC2793 is available in a 8-pin 2mm × 2mm × 0.55mm DFN package.

特性 Features

? 1.5V to 5.5V operating supply voltage range
? Ultra-fast propagation delay (1μs typically)
? ±1.0% threshold accuracy from ?40°C to +125°C
? Monitored voltage range from 0.4V to 5.5V
? Programmable reset timeout delay (from 1ms to 10s)
? Manual reset input with an internal pull-up resistor
? Active-high enable input pin (MIC2793 only)
? The MIC2790/1/3 features multiple output options:
? Open-drain active-low (/RESET)
? Push-pull active-low (/RESET)
? Push-pull active-high (RESET)
? -40°C to +125°C junction temperature range
? 6-pin TSOT-23 (MIC2790)
? 6-pin 2mm × 2mm Thin DFN (MIC2790)
? 6-pin 1.6mm × 1.6mm Thin DFN (MIC2791)
? 8-pin 2mm × 2mm Thin DFN (MIC2793)

簡介

MIC2790屬于集成電路（IC）的監(jiān)控器。由制造生產(chǎn)的MIC2790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。