
Anpec Electronics
GENERAL DESCRIPTION
The APR3101/2/3 are designed to monitor voltage supplies in µP and digital systems. The quiescent current is extremely low, typically 1.5 µA, making it ideal for portable battery operated equipment. The APR3101/2/3 operate by monitoring the system power supply voltage. When the input voltage drops below a fixed threshold or whenever manual reset is asserted, the device asserts a reset signal for a fixed time period after Vcc rises above the fixed threshold or manual reset is deasserted.
FEATUREs
• 1.2V to 6V Input Voltage Range
• Low Quiescent Current : less Than 1.5 µA
• High accuracy detection threshold : ±1.5%
• Fixed trimmed reset thresholds for 1.5V, 1.75V,
2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V.
• Manual Reset Input
• Reset Timeout Period 250ms
• Available output configurations
- Open-drain output
- CMOS active high output
- CMOS active low output
• SOT-23-5 package
• No external components
APPLICATIONs
• Computers
• Cell Phones
• Portable Electronics
• µP Power Supply Monitoring