3-Pin Microcontroller Power Supply Supervisor

The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits optimized for low-power microprocessor (µP), microcontroller (µC) and digital systems. The IMP809/810 are improved drop-in replacements for the Maxim MAX809/810 and feature 60% lower supply current.

Key Features

◆ Improved Maxim MAX809/MAX810 replacement

— Lower supply current…6µA

— 80% lower maximum supply current

◆ Monitor 5V, 3.3V and 3V supplies

◆ 140ms min. reset pulse width

◆ Active-low reset valid with 1.1V supply (IMP809)

◆ Small 3-pin SOT-23 package

◆ No external components

◆ Specified over full temperature range

— – 40°C to 105°C

Applications

◆ Embedded controllers

◆ Battery operated systems

◆ Intelligent instruments

◆ Wireless communication systems

◆ PDAs and handheld equipment