AP0809 Overview
The AP0809 microprocessor supervisory circuit can be used to monitor the power supplies in microprocessor and digital systems. It provides a reset to the microprocessor during power-up, power-down, and brown-out conditions. The function of the AP0809 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold.
AP0809 Key Features
- Precise monitoring of 2.7V, 3.0V, 3.3V and 5.0V supplies
- 140 ms min. Power-On Reset pulse width, 250ms typical, has an active-low RESET Output
- Guaranteed RESET Output valid for VCC≥1.1 V
- Low Supply Current, 2μA Typ
- Available in small SOT23 package
- No external ponents needed
- Specified over full temperature range
- 40°Cto+105°C