The MAX6812LEUS-T from Maxim Integrated is a compact, highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a significant level of system reliability through its reset function, ensuring that the µP resets properly during power-up, power-down, and brown-out conditions. This component is specifically tailored for battery-powered devices, portable equipment, and any application where power conservation is critical.

Operating over a wide voltage range, the MAX6812LEUS-T is capable of handling a supply voltage from 1.2V to 5.5V, making it extremely versatile for various low-voltage applications. The device consumes an ultra-low supply current of only 1µA (typical), which is beneficial for prolonging battery life in portable applications.

This reset circuit comes in a small 4-pin SOT143 package, optimizing board space without sacrificing performance. It features a factory-trimmed reset threshold, and the MAX6812 has an open-drain output, allowing it to be used as a wired-OR logic. The reset output remains asserted for a minimum of 140ms after V<sub>CC has risen above the reset threshold, providing ample time for the system to stabilize.

The MAX6812LEUS-T is characterized for operation over the extended industrial temperature range of -40°C to +85°C, which suits it for harsh environment applications. Its robust design ensures reliable operation under varying conditions, making it a preferred choice for mission-critical applications where a system failure is not an option.

Whether you are designing an embedded system, portable device, or any sensitive digital circuitry that requires precise voltage monitoring and reset capabilities, the Maxim Integrated MAX6812LEUS-T offers a compact, power-saving solution that maintains the integrity of your system.