The MAX6421US26-T from Maxim Integrated is a compact, highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity in the event of power fluctuations or failures. This device is a crucial component for managing the reset function of microprocessors, offering a precise monitoring solution to ensure that your digital systems operate within safe parameters.

Key Features

• Voltage Monitoring: The MAX6421US26-T actively monitors the system voltage and provides a reset signal to the µP during power-up, power-down, and brownout conditions. The reset threshold voltage for this device is preset at 2.6V, catering to a variety of applications.
• Low Power Consumption: Designed for power-sensitive applications, this supervisory circuit consumes minimal power, with a typical quiescent current of only 1.5µA, making it ideal for portable and battery-operated devices.
• Manual Reset Input: It features a manual reset input that allows for a system reset to be triggered with an external push-button or logic signal, providing additional control and diagnostic capabilities.
• Watchdog Timer: The integrated watchdog timer ensures that the system will be reset if the µP fails to provide a periodic signal within a preset timeout period, enhancing system reliability.
• Compact Package: The MAX6421US26-T comes in a space-saving SOT-143 package, making it suitable for use in systems where board space is at a premium.

Applications

This supervisory circuit is versatile and can be used in a wide range of applications, including:

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

Reliability and Quality

Maxim Integrated is known for its commitment to quality and reliability, and the MAX6421US26-T is no exception. It is designed and manufactured to meet the stringent requirements of industrial and automotive applications, ensuring dependable performance across a wide temperature range.

With its robust feature set and Maxim Integrated's reputation for quality, the MAX6421US26-T is an excellent choice for designers looking to enhance system stability and reliability in their digital devices.