Maxim Integrated MAX6381XR27D3+T Microprocessor Reset Circuit

The MAX6381XR27D3+T is a high-quality microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. Manufactured by Maxim Integrated, a leader in analog and mixed-signal products, this component ensures reliable operation and enhances the overall stability of electronic systems.

This supervisory circuit is specifically engineered to maintain system integrity by monitoring the power supply voltage. In the event of a power failure or an unexpected dip below a pre-defined threshold, the MAX6381XR27D3+T asserts a reset signal to the microprocessor, effectively resetting the system to prevent data corruption, erratic operation, or potential damage to the system components.

Featuring a factory-set reset threshold voltage of 2.7V, the MAX6381XR27D3+T is well-suited for applications that operate at 3V power supply levels. It is capable of providing a reset signal for a minimum of 140ms (typical) after the supply voltage drops below the threshold, ensuring enough time for the system to recover to a stable state before resuming normal operation.

The device comes in a compact, 3-pin SC70 package, making it an excellent choice for space-constrained applications. The small form factor, combined with its low supply current of only 1.2µA (typical), makes the MAX6381XR27D3+T an energy-efficient solution for portable and battery-powered devices.

For added flexibility, the MAX6381XR27D3+T features an active-low, push-pull reset output. This type of output configuration allows for a direct interface with a microprocessor's reset input without the need for additional external components, simplifying circuit design and reducing overall system cost.

As part of Maxim Integrated's commitment to quality, the MAX6381XR27D3+T is designed to operate over a wide temperature range of -40°C to +125°C. This makes it suitable for use in various environments, from industrial to automotive applications, where temperature extremes are common.

In summary, the MAX6381XR27D3+T from Maxim Integrated is a highly reliable and efficient microprocessor supervisory circuit, offering robust power supply monitoring in a compact package for a wide range of applications.