Product Overview: MAX690BPA Microprocessor Supervisory Circuit

The MAX690BPA from Maxim Integrated is a high-performance microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides maximum protection for your system by ensuring that the µP and other critical components operate within specified voltage levels. With its robust feature set, the MAX690BPA is an essential component for any system requiring reliable operation and protection against power supply anomalies.

Key Features

• Power Supply Monitoring: The MAX690BPA constantly checks the power supply voltage and maintains system integrity by providing a reset signal to the µP during power-up, power-down, and brownout conditions.
• Battery Backup Switching: It includes an automatic battery backup switching feature that enables the system to continue operation even when the main power supply fails.
• Low Power Consumption: Designed for energy-efficient systems, it has a low quiescent current, which is particularly beneficial for battery-powered devices.
• Adjustable Reset Threshold: Users can set the voltage threshold level at which the reset signal is activated, allowing for a customized response to varying system requirements.
• Watchdog Timer: The built-in watchdog timer ensures that the µP is functioning correctly by requiring periodic check-ins; if the µP fails to reset the timer within a preset interval, the MAX690BPA will issue a system reset.

Applications

The MAX690BPA is ideal for use in a wide range of applications, including:

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

Technical Specifications

With its comprehensive suite of protection features and the reliability expected from Maxim Integrated, the MAX690BPA is an excellent choice for any design where power supply stability and µP integrity are of utmost importance.