General Description
The RT9808 is a micro-power voltage detector supervising the power supply voltage level for microprocessors (µP) or digital systems. It provides internally fixed threshold levels with 0.1V per step ranging from 1.5V to 5V, which covers most digital applications. It features low supply current of 3µA.

FEATUREs
• Internally Fixed Threshold 1.5V to 5V in 0.1V Step
• ±2% Accuracy
• Low Supply Current 3µA
• Quick Reset within 20µS
• Built-in Recovery Delay 200mS
• Low Functional Supply Voltage 0.9V
• N-Channel Open Drain Output
• Small 3-Pin SOT-23/SOT89 and 5-Pin SOT-25 Packages

APPLICATIONs
• Computers
• Controllers
• Intelligent Instruments
• Critical µP and µC Power Monitoring
• Portable/Battery-Powered Equipment