General Description

The MIC845 is a precision micro-power voltage comparator with an on-chip 2.55V reference voltage source.

Intended for voltage monitoring applications, the MIC845 can be used with an external resistor divider to detect a wide range of voltages, or without external resistors to directly monitor voltages with its high input impedance CMOS input.

Features

• Extremely low 1µA supply current (typical)

• 2.55V on chip reference

• ±2 voltage threshold accuracy

• Optimized for PDAs, cellular telephones, pagers, and other battery-powered devices

• Open-drain output can be pulled up to 6V regardless of supply voltage

• 5-lead SC-70 package

Applications

• PDAs

• Pagers

• Cordless phones

• Portable electronics

• Motherboards

• Bladed servers