Maxim Integrated's MAX811SEUR Microprocessor (µP) Supervisory Circuit

The MAX811SEUR from Maxim Integrated is a compact, highly efficient microprocessor (µP) supervisory circuit designed to monitor the power supplies in µP and digital systems. It provides a significant level of protection to ensure the proper operation of these systems by offering features such as reset output, a watchdog timer, and a manual reset capability. This device is ideal for use in a wide range of applications, including computers, controllers, intelligent instruments, and critical µP monitoring.

Key Features:

• Power Supply Monitoring: The MAX811SEUR ensures that the system's power supply remains within acceptable voltage levels, generating a reset signal whenever the monitored voltage drops below a preset threshold. This reset signal continues for a minimum of 140ms after the voltage exceeds the reset threshold, providing a stable system restart.
• Watchdog Timer: With a built-in watchdog timer, this supervisory circuit helps prevent system failures due to software lock-up, enhancing overall system reliability. If the watchdog timer is not periodically reset by the correct sequence of events in the monitored system, it triggers a system reset.
• Manual Reset: An additional feature of the MAX811SEUR is the manual reset input, which allows for an external trigger to initiate a system reset. This is useful for system maintenance or in emergency situations where a manual override is necessary.
• Low Power Consumption: Designed for power-sensitive applications, the device operates with low power consumption, making it suitable for battery-operated systems.
• Compact SOT-23 Packaging: The MAX811SEUR comes in a small SOT-23 package, making it ideal for space-constrained applications without compromising functionality.

Applications:

The device's robust feature set and compact design make it well-suited for a variety of applications, including:

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

With the MAX811SEUR, Maxim Integrated provides a reliable and efficient solution for system monitoring and protection, ensuring that your digital systems operate smoothly and securely at all times.