MAX6365HKA44+

Overview

The MAX6365HKA44+ is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within an input voltage range of 2.3 V to 5.5 V and features a fixed threshold voltage of 4.4 V for monitoring power supply integrity. The device provides a manual reset input, allowing for user-initiated system resets, and includes a battery backup switch for seamless transition between primary and secondary power sources. It utilizes a push-pull active-low output configuration with a typical reset delay time of 280 ms. Designed for surface-mount installation, it is housed in an SOT-23-8 package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a manual reset input for direct user control over system reset states
• Includes a dedicated battery backup switch to manage power source transitions
• Provides a push-pull active-low output signal for reliable logic interfacing

Applications

• Microprocessor power supply monitoring in embedded systems
• Battery-powered devices requiring seamless power source switching
• Industrial control units needing manual reset capabilities

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and check current availability as supply may be restricted. Ensure the specific suffix matches required pinout and electrical characteristics before integration into design.

Selection Notes

Select this component when a fixed 4.4 V threshold is required for voltage supervision. Consider the manual reset feature if external reset control is necessary. Evaluate the SOT-23-8 package constraints against available PCB space. Verify that the 15 uA quiescent current meets low-power design requirements.

Part Context

This part belongs to the MAX6365L series of low-power microprocessor supervisors. It shares functional similarities with other parts in the family but differs in threshold voltage and package options. The series is designed for applications requiring reliable power management with minimal standby current consumption.

Replacement Considerations

Check for exact pin-compatible alternatives within the MAX6365L family with matching 4.4 V thresholds. Verify that any substitute maintains the same manual reset functionality and battery backup switch features.