MAX6355LTUT+

Overview

The MAX6355LTUT+ is a dual/triple-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two or three input supply voltages and asserts active-low reset outputs when any monitored voltage drops below its preset threshold. The device features an open-drain output, manual reset capability, and operates within a supply voltage range up to 5.5V. It provides a minimum power-on reset pulse width of 100ms and includes a debounced manual reset input. The component is housed in a SOT-23-6 package and supports thresholds such as 3.08V and 4.63V.

Feature Summary

• Monitors multiple power-supply voltages with precision factory-set thresholds
• Provides active-low reset outputs valid as long as inputs remain above +1.0V
• Includes debounced manual-reset input compatible with TTL/CMOS logic

Applications

• Microprocessor system power supervision
• Multi-rail voltage monitoring in embedded systems
• Battery-powered device power management

Procurement Notes

Verify the exact suffix for the MAX6355LTUT+ variant against official datasheets, as suffixes define specific threshold voltages and package types. Confirm RoHS compliance status and check for end-of-life notices from Analog Devices, as this series has faced discontinuation announcements. Ensure the selected part matches the required voltage thresholds for the target application design.

Selection Notes

Select this component when precise monitoring of dual or triple voltage rails is required in a compact surface-mount package. Consider the open-drain output configuration and the need for external pull-up resistors. Evaluate if the fixed threshold levels meet the system requirements or if adjustable variants are necessary. Verify compatibility with the system's operating temperature range of -40°C to +85°C.

Part Context

The MAX6355 belongs to the MAX6351–MAX6360 family of microprocessor supervisory circuits designed to improve system reliability. These devices replace discrete components by integrating multiple reset functions into a single IC. The family offers various output configurations and threshold options to accommodate different power-supply architectures in industrial and consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers for the MAX6355LTUT+ are not available in the provided documentation. Users should consult Analog Devices' official replacement guides or contact technical support for qualified alternatives.