Maxim Integrated MAX6443US23L+T Microprocessor Supervisory Circuits

The MAX6443US23L+T from Maxim Integrated is a state-of-the-art microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from 1.8V to 5V.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset voltage threshold, providing ample time for the system to stabilize.

The MAX6443US23L+T offers a variety of features that make it a versatile choice for system management. It comes with a manual reset input that allows for a system reset to be triggered with an external signal. Additionally, its low supply current of 1.2µA (typical) makes it an energy-efficient option for portable applications.

The device's open-drain reset output allows for the flexibility to wire OR'ed configurations. This is particularly useful in systems where multiple devices need to coordinate their reset signals. Furthermore, the MAX6443US23L+T is capable of operating over a wide temperature range of -40°C to +125°C, ensuring reliable performance under various environmental conditions.

Packaged in a compact SOT-23, the MAX6443US23L+T is a space-saving solution that is ideal for applications with limited PCB real estate. Its lead(Pb)-free and RoHS-compliant design also makes it suitable for use in environmentally sensitive applications.

In summary, the MAX6443US23L+T supervisory circuit from Maxim Integrated is a robust, low-power solution for microprocessor system management, offering features such as power-on reset control, manual reset capability, and a wide operating temperature range, all in a small package that meets modern environmental standards.