MAX6355MRUT

Overview

The MAX6355MRUT+T is a dual/triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors three input supply voltages with preset thresholds of 2.63 V and 4.38 V, featuring an additional adjustable monitor input. The device provides active-low open-drain reset outputs and includes a manual reset input. It operates within a supply voltage range up to 5.5 V, maintaining accuracy of 1.5% over an extended temperature range from -40°C to +85°C. The unit consumes 20 µA of supply current and offers a reset delay time of 180 ms.

Feature Summary

• Monitors multiple power-supply voltages with precision factory-set thresholds
• Includes debounced manual-reset input compatible with TTL/CMOS logic
• Provides active-low open-drain reset outputs for system reliability

Applications

• Microprocessor system power supervision
• Multi-voltage embedded controller monitoring
• Portable electronic device power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as this specific part number may be discontinued. Ensure the SOT-23-6 package matches your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when precise monitoring of three distinct voltage rails is required without external resistors. The fixed threshold levels simplify design compared to adjustable supervisors. Consider the open-drain output configuration for compatibility with various logic families. Verify that the 180 ms reset delay meets your system startup timing constraints.

Part Context

This component belongs to the MAX6351–MAX6360 series of microprocessor supervisory circuits designed to improve system reliability. These devices replace discrete components by integrating multiple reset functions into a single IC. The series supports various voltage thresholds and package options, catering to diverse industrial and consumer electronics applications requiring robust power management.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-references or updated series replacements.