Maxim Integrated MAX6358LSUT+T Microprocessor Supervisory Circuit

The MAX6358LSUT+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in system monitoring applications.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6358LSUT+T features a manual reset input that allows for a very low supply current, making it an ideal choice for portable and battery-operated equipment.

The device operates over a wide voltage range, catering to systems that use different supply voltages, and it includes a precision voltage monitor that tracks the system voltage. It asserts a reset signal whenever the VCC supply voltage falls below its reset threshold level. The reset output remains asserted for the reset timeout period after VCC rises above the reset threshold, ensuring the system has adequate time to stabilize.

Key features of the MAX6358LSUT+T include:

• Factory-Set Reset Thresholds: The reset threshold voltage is factory-set and is available in a variety of options to accommodate different system requirements.
• Reset Timeout: The device has a fixed reset timeout period that ensures the µP is held in the reset state long enough to recover from power-down or other faulty conditions.
• Low Supply Current: Its low supply current makes it suitable for power-sensitive applications.
• Manual Reset Input: The manual reset input allows for an external trigger to initiate a system reset.
• Compact Package: The MAX6358LSUT+T is available in a small, 6-pin SOT23 package, which is ideal for space-constrained applications.

Typical applications for the MAX6358LSUT+T include portable/battery-powered devices, computers, controllers, intelligent instruments, critical µP and µC power monitoring, and automotive systems. With its robust feature set and Maxim Integrated's reputation for quality, this supervisory circuit is an excellent choice for ensuring system stability and reliability.