Maxim Integrated MAX6802UR31D3+T Microprocessor Reset Circuit

The Maxim Integrated MAX6802UR31D3+T is a highly reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in μP and digital systems. It provides a significant level of system integrity by ensuring that the μP boots up in a known state during power-up, power-down, and brown-out conditions. This compact and efficient component is an essential part of any system where data integrity and reliable operation are of paramount importance.

One of the key features of the MAX6802UR31D3+T is its ability to assert a reset signal whenever the VCC supply voltage falls below a preset threshold, 3.1V in this case, ensuring that the μP resets cleanly during power-up, power-down, or during a brown-out. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, providing ample time for the system to stabilize.

This device comes in a compact SOT-23 package, making it ideal for space-constrained applications. It is part of a larger family of similar devices, offering a variety of voltage thresholds and output options, ensuring that designers can find the perfect fit for their specific requirements.

The MAX6802UR31D3+T is also characterized by its low supply current of just 5.5μA, which makes it an energy-efficient choice for portable and battery-powered applications. Furthermore, it offers a debounced manual reset input which allows for a manual assertion of the reset signal when necessary. This feature is particularly useful during system maintenance or troubleshooting.

With its extended temperature range, the MAX6802UR31D3+T is designed to operate reliably in diverse environments, making it suitable for automotive, industrial, and consumer electronic applications. Its robust design ensures that it can handle the rigorous demands of continuous operation in these settings.

In summary, the Maxim Integrated MAX6802UR31D3+T is a versatile, energy-efficient, and reliable solution for μP system monitoring, providing an essential safeguard against power supply anomalies and ensuring the stable operation of digital systems.