Maxim Integrated's MAX6381LT26D3+T Microprocessor Reset Circuit

The MAX6381LT26D3+T is a high-quality microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. Manufactured by Maxim Integrated, this precision device provides a significant level of system reliability and accuracy required in critical electronic applications. The MAX6381LT26D3+T is an essential component for managing system behavior during power-up, power-down, and brown-out conditions.

This supervisory circuit offers a factory-trimmed reset threshold voltage of 2.63V, which ensures that the connected µP resets consistently at the appropriate voltage level. When the monitored power supply voltage drops below the reset threshold, the MAX6381LT26D3+T asserts a reset signal, holding the µP in a reset state for a minimum of 140ms (typical) after the supply voltage rises above the reset threshold. This feature ensures that the µP and system have adequate time to stabilize before resuming operation.

Enclosed in a compact, 6-pin SOT-23 package, the MAX6381LT26D3+T is designed to occupy minimal board space, making it an ideal choice for space-constrained applications. The device operates over a wide temperature range of -40°C to +125°C, catering to diverse environmental conditions and making it suitable for use in both commercial and industrial settings.

With its low supply current of only 1.5µA (typical), the MAX6381LT26D3+T is an energy-efficient solution that contributes to the overall power conservation within systems, which is particularly beneficial for battery-operated devices. The device also features an active-low, push-pull reset output, which provides a robust signal that can interface directly with most microprocessor reset inputs without the need for external components.

In summary, the MAX6381LT26D3+T from Maxim Integrated is a reliable and precise microprocessor supervisory circuit that plays a crucial role in enhancing system stability and preventing data corruption during power supply irregularities. Its compact size, low power consumption, and wide operating temperature range make it a versatile choice for a multitude of electronic applications.