Maxim Integrated MAX6316LUK46BY+T Microprocessor Supervisory Circuit

The MAX6316LUK46BY+T is a highly compact, precision voltage monitoring device from Maxim Integrated, designed to ensure reliable operation of microprocessors (µPs) and digital systems. It serves as a microprocessor supervisory circuit that provides excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring power supplies in µP and digital systems.

This supervisory circuit is part of Maxim's MAX6316 series and comes in a small SOT-23 package, making it ideal for space-constrained applications. It features a factory-set reset threshold voltage of 4.6V, tailored for monitoring 5V power supplies. When the monitored supply voltage drops below this threshold, the MAX6316LUK46BY+T asserts a reset signal to the µP, holding it in reset until the supply voltage recovers sufficiently. This reset signal remains asserted for a minimum reset timeout period after the supply voltage rises above the reset threshold, ensuring the µP has adequate time to stabilize.

The device offers a robust feature set, including a debounced manual reset input which allows for a manual system reset. Additionally, it provides an active-low reset output, which is guaranteed to be in the correct state for V_CC down to 1.0V, ensuring the µP resets reliably across the entire operating voltage range.

Furthermore, the MAX6316LUK46BY+T is characterized for operation over the extended industrial temperature range of -40°C to +85°C, making it suitable for harsh environments. Its low supply current of 1.5µA (typical) makes it an energy-efficient choice for portable and battery-powered applications.

Maxim Integrated's commitment to quality is evident in the MAX6316LUK46BY+T, with its integrated features that reduce system complexity and increase reliability. This supervisory circuit is an excellent choice for designers looking to enhance system integrity and prevent the consequences of unpredictable system behavior due to power supply inconsistencies.

Overall, the MAX6316LUK46BY+T is a testament to Maxim Integrated's dedication to providing advanced circuit protection solutions that are both functional and economical, making it a go-to choice for safeguarding critical microprocessor-based systems.