Product Overview: APX809S-31SR-7

The APX809S-31SR-7 is a highly reliable, precision microprocessor (μP) supervisory circuit designed by Diodes Incorporated to monitor the power supply voltage of digital systems. It is instrumental in ensuring the proper operation of μP and μP-based systems by providing a reset signal to the host processor when the supply voltage drops below a predetermined threshold.

Key Features

• Voltage Monitoring Precision: This component ensures accurate monitoring with a factory-trimmed threshold voltage of 3.1V, making it suitable for systems that require a precise voltage supervision.
• Low Power Consumption: Designed for power-sensitive applications, the APX809S-31SR-7 consumes minimal power, thereby extending the battery life of portable devices.
• Reset Signal: It provides an active-low reset output, which holds the μP in the reset condition until the system voltage has stabilized at the correct operating level.
• Reset Timeout: The reset output remains active for a minimum of 140ms after the supply voltage rises above the reset threshold level, ensuring system stability.
• Temperature Range: The device operates over a wide temperature range from -40°C to +85°C, suitable for industrial applications.

Applications

The APX809S-31SR-7 is an essential component in a wide range of applications, especially where the integrity of the operating voltage is critical. It is commonly used in:

• Microprocessor systems
• Computers
• Controllers
• Intelligent instruments
• Portable/battery-powered equipment

Package and Availability

The APX809S-31SR-7 comes in an SOT-23 package, known for its small footprint, and is available in tape and reel form to facilitate automated assembly processes. The product is RoHS compliant and adheres to the stringent quality standards set by Diodes Incorporated, ensuring reliability and performance.

For more detailed specifications, application notes, and support documentation, customers are encouraged to visit the Diodes Incorporated official website or contact their sales representative.