MAX690REPA+ Microprocessor Supervisory Circuit

The MAX690REPA+ is a highly-reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to provide essential monitoring and control functions for microprocessor systems. This advanced component is engineered to enhance system stability by overseeing the power supply, memory, and other critical functions.

Key Features

• Power Supply Monitoring: The MAX690REPA+ monitors the system's power supply voltage and ensures it remains within acceptable thresholds, providing a reset output during power-up, power-down, and brownout conditions.
• Backup Battery Switchover: This device includes a backup battery switchover feature that allows a backup battery to be automatically switched in whenever the primary power supply fails, ensuring uninterrupted operation.
• Low Power Consumption: With its low power consumption, the MAX690REPA+ is an ideal choice for power-sensitive applications, contributing to overall energy efficiency.
• Voltage Monitor: The integrated voltage monitor ensures that the microprocessor is reset to a known state upon detection of out-of-tolerance power supply conditions.
• Watchdog Timer: A built-in watchdog timer keeps the microprocessor operating correctly by resetting it if it fails to strobe within a preset time frame.
• Manual Reset: A manual reset input is provided to allow for an external trigger to initiate a system reset.

Applications

The MAX690REPA+ is suitable for a wide range of applications that require reliable system monitoring and control. These include:

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

Technical Specifications

The device comes in an 8-pin DIP package and operates over a temperature range of -40°C to +85°C. It is designed to work with a supply voltage range of 4.5V to 5.5V, making it versatile for integration into various system designs.

With its robust feature set, the MAX690REPA+ from Maxim Integrated provides the necessary functions to enhance system reliability and prevent data corruption due to power anomalies, making it a valuable component for any microprocessor-based system.