Maxim Integrated MAX823SEUK+ Microprocessor Supervisory Circuit

The Maxim Integrated MAX823SEUK+ is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in system monitoring applications. This compact supervisory circuit is ideal for portable electronics, computers, controllers, and intelligent instruments where size and power conservation are critical.

Key Features

• Precision Voltage Monitoring: The MAX823SEUK+ monitors the system voltage with a precision preset voltage threshold, ensuring that the microprocessor is reset to a known state during a power failure or brownout condition.
• Low Power Consumption: With its low supply current of only 3µA, this device is optimized for power-sensitive applications, extending battery life in portable devices.
• Manual Reset Input: A manual reset input is provided, allowing for a reset to be triggered with an external push-button or logic signal for system debugging and testing purposes.
• Compact SOT-23 Packaging: The device comes in a small, 5-pin SOT-23 package, making it suitable for space-constrained applications while providing a robust solution for system monitoring.
• Integrated Watchdog Timer: An onboard watchdog timer ensures that the system microprocessor is operating correctly, and if a system hang or malfunction is detected, the device can reset the µP to recover from the fault condition.
• Wide Operating Temperature Range: The MAX823SEUK+ operates over an extended temperature range of -40°C to +85°C, making it suitable for industrial and automotive environments.

Applications

The versatility of the MAX823SEUK+ makes it an excellent choice for a variety of applications, including:

• Portable/Battery-Powered Equipment
• Embedded Systems
• Computers and Servers
• Data Storage Systems
• Medical Devices
• Automotive Systems

In summary, the Maxim Integrated MAX823SEUK+ supervisory circuit is a vital component for maintaining the integrity of microprocessor systems by providing essential monitoring and control functions. Its integration of key features, combined with its compact size, makes it an indispensable part of any power management solution.