Maxim Integrated MAX6822WUK+T Microprocessor Supervisory Circuit

The MAX6822WUK+T from Maxim Integrated is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and accuracy required in critical applications, ensuring that all system parameters remain within operational thresholds.

This supervisory circuit is particularly efficient in managing system reset functions. It offers a factory-trimmed reset threshold voltage, which allows the device to monitor the supply voltage (VCC) and assert a reset signal whenever VCC drops below the minimum voltage threshold. The reset signal remains asserted for a preset timeout period after VCC rises above the reset threshold, ensuring the system has stabilized before operation continues.

Key features of the MAX6822WUK+T include:

• Factory-Set Reset Thresholds: Available in a variety of voltage thresholds suitable for most 3V to 5V powered circuits, this flexibility allows designers to select the appropriate version for their specific application.
• Low Supply Current: With its low supply current of 6µA (typical), it is an ideal choice for portable and battery-powered applications where power conservation is crucial.
• Manual Reset Input: This input provides a direct method to manually reset the system, offering an additional layer of control.
• Guaranteed Reset Valid to VCC = 1V: Ensures reliable operation even during low voltage conditions.
• Small SOT23 Packaging: The device comes in a compact 5-pin SOT23 package, making it suitable for space-constrained applications.

The MAX6822WUK+T supervisory circuit is an essential component for systems that require a reliable and accurate method to monitor power supply conditions, thereby protecting the integrity of system processes and data. Its small size and low power consumption make it an excellent choice for a wide range of applications, including portable devices, computers, controllers, and intelligent instruments.

As with all Maxim Integrated products, this supervisory circuit is designed with the highest standards of quality and reliability, ensuring that it meets the stringent demands of industrial and commercial applications.