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