Maxim Integrated MAX6308UK00D3-T Microprocessor Reset Circuit

The MAX6308UK00D3-T is a highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant level of protection to your digital devices by ensuring that the microprocessor is reset to a known state during power-up, power-down, or brownout conditions. This supervisory circuit is an essential component for systems that require a high degree of operational stability and reliability.

This device comes in a compact SOT-23 package, making it suitable for space-constrained applications. It is engineered to perform with a precision of ±1.5% over temperature, which is crucial for maintaining system accuracy and performance. The MAX6308UK00D3-T operates with a nominal threshold voltage of 3.08V, tailored to monitor 3.3V power supplies, and is available in a variety of threshold voltages suitable for monitoring different voltage levels.

One of the key features of the MAX6308UK00D3-T is its ability to assert a reset signal whenever the VCC supply voltage falls below the preset threshold. The reset output remains asserted for a minimum timeout period after VCC has risen above the reset threshold, ensuring the system has sufficient time to stabilize. This timeout period, typically 140ms, provides the system with a reliable startup period before commencing normal operation.

The device also includes a manual reset input, which allows for an external signal to trigger a system reset. This feature is particularly useful for implementing user-initiated resets or for connecting to other system monitoring circuits that may require an integrated reset functionality.

The MAX6308UK00D3-T is designed to operate over a wide temperature range of -40°C to +125°C, ensuring functionality in various demanding environments. With its low supply current of 1µA (typical), it is optimized for portable and battery-powered applications where power efficiency is crucial.

In summary, the Maxim Integrated MAX6308UK00D3-T is a robust and precise microprocessor supervisory circuit that provides essential protection against power supply anomalies, ensuring the reliable operation of digital systems. Its compact size, precision monitoring capabilities, and extended temperature range make it an ideal choice for a wide array of applications.