MAX6364LUT29-T

Overview

The MAX6364LUT29-T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2V to 5.5V and features a fixed reset threshold voltage of 2.93V. The device provides an active-low, push-pull output with a typical reset delay time of 280ms. It includes a battery backup switch for seamless power transition monitoring and lacks a manual reset input or watchdog timer. The component is housed in a compact SOT-23-6 package and supports surface-mount installation. It functions reliably across an industrial temperature range from -40°C to +85°C while consuming only 15µA of quiescent current.

Feature Summary

• Integrates a battery backup switch to monitor voltage transitions between main and backup power sources.
• Provides a dedicated manual reset pin allowing external assertion of the reset signal.
• Features a built-in watchdog timer with timeout detection to prevent software lockups.
• Delivers an active-low, open-drain reset output compatible with various logic families.

Applications

• Portable electronic devices requiring reliable power management during battery swaps.
• Embedded systems utilizing microcontrollers that need automated reset generation upon power failure.
• Industrial control units operating in environments with fluctuating supply voltages.
• Communication equipment ensuring system stability through watchdog timer functionality.

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations exist within the MAX6364 family. Confirm availability status directly with authorized distributors, as this specific part number may be subject to limited stock or discontinuation notices. Ensure the selected variant matches the required threshold voltage and package type for your design. Cross-reference the manufacturer's latest lifecycle announcements to avoid obsolescence risks during production planning.

Selection Notes

Choose this component when a combination of battery backup monitoring, manual reset capability, and watchdog protection is required in a minimal footprint. The SOT-23-6 package suits space-constrained designs. Verify that the 2.93V threshold aligns with the monitored rail's minimum operating voltage. Consider the open-drain output requirement for pull-up resistor selection. Ensure the operating temperature range meets the environmental conditions of the target application.

Part Context

This part belongs to the Maxim Integrated MAX636x series of low-power microprocessor supervisors. These devices are designed to provide essential reset functions for digital systems. The MAX6364 variant specifically adds manual reset and watchdog features compared to simpler models. The series is widely used in consumer electronics and industrial applications where power integrity is critical. Analog Devices acquired Maxim Integrated, maintaining the product line under the ADI portfolio.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6364 family with different threshold voltages if the 2.93V setting is unsuitable. Verify equivalent parts from other manufacturers offering similar supervisory functions with integrated watchdog and battery backup switches. Ensure any substitute maintains the same SOT-23-6 package and electrical characteristics to facilitate drop-in replacement without PCB redesign.