Maxim Integrated MAX6747KA16-T Microprocessor Supervisory Circuit

The MAX6747KA16-T from Maxim Integrated is a compact, highly reliable microprocessor (µP) supervisory circuit engineered to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring. Designed to maintain system integrity, this supervisory circuit ensures that the µP and other critical system components operate at optimal voltages.

With a factory-trimmed reset threshold voltage of 1.575V, the MAX6747KA16-T is specifically tailored for applications that run on low voltage power supplies. It has the capability to assert a reset signal whenever the VCC supply voltage falls below the preset threshold, maintaining it until VCC rises above the threshold for a specified period, known as the reset timeout period. This feature safeguards the system against erratic operation during power-up, power-down, and brown-out conditions.

The device comes in a small, space-saving SOT-23 package, making it ideal for portable and space-constrained applications. It operates over a wide temperature range of -40°C to +125°C, accommodating the demands of various operating environments. The MAX6747KA16-T also boasts a low supply current of 5.5µA (typical), which is beneficial for battery-powered devices where power efficiency is crucial.

Moreover, the MAX6747KA16-T includes additional features such as a manual reset input, which allows for a system reset to be initiated by external hardware or software. This manual reset function is debounced to ensure reliable operation. The device also offers an active-low open-drain reset output, providing flexibility in interfacing with other components in the system.

In summary, the Maxim Integrated MAX6747KA16-T is a highly efficient, reliable supervisory circuit that provides crucial monitoring of system voltages, ensuring stable and secure operation of microprocessors and digital systems. Its ease of integration, low power consumption, and robust feature set make it an excellent choice for designers looking to enhance system reliability without increasing complexity.