Maxim Integrated MAX791CSE Microprocessor Supervisory Circuit

The MAX791CSE from Maxim Integrated is a high-quality microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent reliability and functionality, ensuring that systems operate smoothly and safely even under varying power conditions. This component is particularly useful for managing system resets and preventing code execution errors during power-up, power-down, and brown-out conditions.

This supervisory circuit comes in a compact 16-pin narrow SO package, making it suitable for space-constrained applications. The MAX791CSE offers several key features that make it an ideal choice for critical system monitoring tasks:

• Precision Voltage Monitoring: The device includes a precision voltage monitor with a factory-set reset threshold voltage. This ensures accurate monitoring of the system power supply.
• Manual Reset Input: An active-low manual reset input allows for a manual system reset, providing an additional layer of control for system operators.
• Reset Timeout: It features an adjustable reset timeout period, which can be set by an external capacitor. This allows designers to tailor the reset signal's duration to the specific needs of their system.
• Backup Battery Switchover: The MAX791CSE includes a backup battery switchover feature that automatically switches to a backup battery when the main power supply fails, ensuring uninterrupted operation.
• Low Power Consumption: Designed with power efficiency in mind, the device consumes minimal power, which is crucial for battery-powered applications.
• Watchdog Timer: A built-in watchdog timer helps to detect and recover from system malfunctions. If the system becomes unresponsive, the watchdog timer can reset the system automatically.

The MAX791CSE is ideal for use in a wide range of applications, including computers, controllers, intelligent instruments, critical µP and µC power monitoring. Its robust feature set ensures that systems remain operational and stable under adverse power conditions, providing peace of mind for both designers and end-users.

With Maxim Integrated's reputation for quality and performance, the MAX791CSE supervisory circuit is a reliable choice for safeguarding your digital systems.