The APX810S-44SA-7 from Diodes Incorporated is a highly reliable, precision microprocessor (μP) supervisory circuit designed to monitor the power supplies in digital systems. It provides a significant function in ensuring the proper operation of a μP or digital system by resetting the system during power-up, power-down, and brown-out conditions.

Key Features

• Voltage Monitoring: This device maintains a watchful eye on the system voltage, providing a reset signal to the connected microprocessor when the monitored voltage drops below the factory-set reset threshold level of 4.4V.
• Reset Timeout: After the system voltage returns above the reset threshold level, the APX810S-44SA-7 keeps the reset output active for a minimum of 240ms (reset timeout period) to ensure system stability.
• Low Power Consumption: The device is designed for low power consumption, making it an ideal choice for power-sensitive applications.
• High Accuracy: With its precision monitoring capability, the APX810S-44SA-7 ensures system reliability by offering ±1.5% reset threshold accuracy over the entire temperature range.
• Operating Temperature Range: The device operates efficiently across a wide temperature range from -40°C to +85°C, suitable for various environmental conditions.
• Package: Available in a space-saving SOT-23 package, the APX810S-44SA-7 is perfect for applications where board space is at a premium.

Applications

The APX810S-44SA-7 is versatile and can be used in a range of applications where system integrity is crucial. It is commonly found in:

• Microprocessor-based systems
• Computers and controllers
• Portable/battery-powered equipment
• Intelligent instruments
• Industrial equipment

With its robust design and essential protective features, the APX810S-44SA-7 is an indispensable component for maintaining the health and stability of electronic systems. Diodes Incorporated's commitment to quality ensures that this reset circuit meets the stringent requirements of modern digital applications.