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