The APX809-23SAG-7 is a highly precise microprocessor (μP) supervisory circuit designed by Diodes Incorporated to monitor power supplies in digital systems. It ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The compact design and reliability of the APX809-23SAG-7 make it an essential component for a wide range of applications, including microprocessor-based systems, computers, controllers, and intelligent instruments.

Key Features:

• Precision Voltage Monitoring: The device features a fixed threshold voltage of 2.3V that provides a precise monitoring system for the power supply.
• Low Power Consumption: With its low power draw, the APX809-23SAG-7 is suitable for power-sensitive applications, thereby enhancing the overall efficiency of the system it is incorporated into.
• Manual Reset Input: The manual reset input allows the system to be reset via an external pushbutton or logic signal, providing additional flexibility and control.
• Reset Time Delay: It offers a significant delay of typically 140ms (minimum) on the reset output, ensuring the system has adequate time to stabilize before normal operation resumes.
• Open Drain Output: The reset output is of the open-drain type, which facilitates the connection of multiple devices to a common reset line and allows for the use of different voltage levels for the reset signal.
• Temperature Range: The device operates over a wide temperature range of -40°C to +105°C, making it suitable for various operating environments.
• Packaging: It comes in a space-saving SOT-23 package, which is ideal for use in systems where board space is at a premium.
• RoHS Compliant: As a RoHS-compliant product, it meets environmental standards by avoiding the use of hazardous substances.

Applications:

The APX809-23SAG-7 is versatile and can be used in numerous applications that require reliable voltage monitoring and system reset functionalities. These applications include:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Devices
• Networking Equipment
• Industrial Controllers

In summary, the APX809-23SAG-7 from Diodes Incorporated is a robust and reliable solution for managing the reset function of microprocessor systems, ensuring safe and predictable behavior under variable power conditions. Its precision voltage monitoring and low power consumption make it an invaluable component for maintaining system integrity.