Maxim Integrated MAX6806UR23+T Microprocessor Reset Circuits

The MAX6806UR23+T from Maxim Integrated is a highly reliable and compact microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability through its ability to reset a µP during power-up, power-down, and brownout conditions. This component is an essential tool for maintaining the integrity of digital logic operations.

The device comes in a small, three-pin SOT-23 package, making it an excellent choice for space-constrained applications. It operates over a wide voltage range and features a factory-set reset threshold voltage of 2.32V, which is suitable for 2.5V-powered circuits. The MAX6806UR23+T has a low supply current of only 1.2µA, making it an energy-efficient solution for portable and battery-powered equipment.

One of the key features of this reset circuit is its ability to provide a precise monitoring function. It asserts a reset signal whenever the V<sub>CC supply voltage falls below the reset threshold. The reset output remains asserted for a minimum of 140ms after V<sub>CC has risen above the reset threshold, ensuring that the µP has ample time to stabilize and initialize properly before resuming operation. This timing accuracy is maintained over the entire temperature range and does not require any external components.

The MAX6806UR23+T is designed to tolerate a wide temperature range from -40°C to +125°C, which makes it suitable for industrial applications. Its robust design ensures that the device can handle harsh environments and maintain performance reliability.

With its simple interface and ease of use, the Maxim Integrated MAX6806UR23+T is a versatile component that can be integrated into a wide variety of systems that require a reliable reset function. Whether it's for consumer electronics, automotive, or industrial control systems, this µP supervisory circuit helps protect the integrity of the system by ensuring that the µP resets cleanly during power disturbances.

Overall, the MAX6806UR23+T is a testament to Maxim Integrated's commitment to providing high-quality, reliable integrated circuits that enhance system stability and performance.