Maxim Integrated MAX6315US44D2-T Microprocessor Reset Circuit

The MAX6315US44D2-T is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated 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 brown-out conditions. With its small footprint and low power consumption, the MAX6315 is an ideal choice for portable and space-constrained applications.

This device operates with a nominal supply voltage of 4.4V, making it suitable for 5V systems with tight voltage tolerances. It maintains system integrity by asserting a reset signal whenever the VCC supply voltage falls below the factory-set reset threshold. The reset output remains asserted for a minimum reset timeout period of 140ms after VCC has risen above the reset threshold, ensuring the system has sufficient time to stabilize.

One of the key features of the MAX6315US44D2-T is its precision factory-set VCC reset threshold, which eliminates the need for external resistors and adjustments. This enhances the reliability of the overall design by reducing component count and potential points of failure. The device is also designed with low supply current requirements, drawing typically only 1µA of supply current, which is highly beneficial for battery-operated equipment.

The MAX6315US44D2-T comes in a compact SOT-143 package, making it convenient for use in space-constrained applications. The device is also available in a variety of other standard packages, providing flexibility for different design requirements. Additionally, it has an operating temperature range of -40°C to +85°C, which allows for deployment in a wide range of environments.

Overall, the MAX6315US44D2-T from Maxim Integrated is a robust and reliable solution for system monitoring and reset functions. It is a testament to Maxim's commitment to providing high-quality, integrated circuits that ensure the stable operation of digital systems across various applications.