MAX6363HUT44+T

Overview

The MAX6363HUT44+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2 V to 5.5 V and features a fixed reset threshold voltage of 4.4 V. The device provides an active-low, open-drain reset output with a typical reset delay time of 280 ms. It includes a battery backup switch function to maintain monitoring during power transitions. The component is housed in a SOT-23-6 surface-mount package and supports operation across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Provides reliable voltage supervision for microprocessors and digital systems with a fixed 4.4 V threshold.
• Integrates a battery backup switch to ensure continuous monitoring during main power loss or transition events.
• Delivers an active-low open-drain reset signal with a defined 280 ms delay to allow stable power-up sequences.

Applications

• Microprocessor system power management
• Embedded controller voltage supervision
• Battery-powered device power monitoring

Procurement Notes

Verify the exact suffix designation (+T) against the manufacturer's current documentation to confirm packaging specifications. Confirm that the fixed 4.4 V threshold aligns with the target system's voltage requirements. Check for obsolescence status as this component may be discontinued or subject to limited availability. Ensure the SOT-23-6 footprint matches the design layout constraints.

Selection Notes

Select this component when a fixed 4.4 V reset threshold is required for systems operating between 1.2 V and 5.5 V. The integrated battery backup feature makes it suitable for applications requiring seamless power source switching. Consider the 15 µA quiescent current for low-power designs. Verify compatibility with the active-low open-drain output interface and the 280 ms reset delay timing requirements.

Part Context

This part belongs to the MAX6363P series of low-power MPU supervisors. It shares functional similarities with other devices in the family but is distinguished by its specific 4.4 V threshold voltage setting. The series typically offers various threshold options and package configurations to suit different voltage monitoring needs in portable and industrial electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult official cross-reference guides for potential alternatives if this component is obsolete.