Maxim Integrated MAX6383XR22D3+T Microprocessor Reset Circuit

The Maxim Integrated MAX6383XR22D3+T is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system integrity by ensuring that the µP resets to a known state during power-up, power-down, or brown-out conditions. The compact and efficient design makes it an ideal solution for space-constrained applications.

This supervisory circuit operates with a nominal reset threshold voltage of 2.2V, which makes it suitable for low-voltage operations. It is designed to maintain system stability by asserting a reset signal whenever the VCC supply voltage falls below the preset threshold. The reset output remains asserted for a minimum of 140ms after VCC rises above the reset threshold, ensuring that the system has sufficient time to stabilize.

The MAX6383XR22D3+T is available in a tiny, space-saving SOT-323 package, which is highly beneficial for portable electronics where space is at a premium. This package type also contributes to a reduction in the overall power consumption of the system, enhancing battery life in portable applications.

One of the key features of this device is its low supply current of only 1.2µA, which is ideal for battery-powered equipment. This low power consumption helps to extend the operational life of the system it is protecting. Additionally, the component is characterized for operation over the extended industrial temperature range of -40°C to +85°C, ensuring reliability in a wide range of environments and applications.

The MAX6383XR22D3+T also includes a debounced manual reset input. This feature allows for a manual assertion of the reset signal, providing designers with additional flexibility and control over the reset functionality. This input can be used to initiate a system reset remotely, which is particularly useful for system maintenance or in the event of a software lock-up.

With its robust feature set and Maxim Integrated's reputation for high-quality components, the MAX6383XR22D3+T is a top choice for designers looking to enhance the reliability and stability of their digital systems.