MAX6368HKA31

Overview

The MAX6368HKA31 is a low-power supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single voltage input with a threshold of 3.08 V and features an active high, open-drain output. The device operates within a supply voltage range up to 5.5 V and includes battery backup functionality alongside chip-enable gating. It offers a reset delay time of 280 ms and consumes only 15 uA of operating current. The component is housed in an SOT-23-8 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates battery backup switching for seamless power transition management
• Provides chip-enable gating capability for system power control
• Delivers active high reset signal with open-drain output configuration

Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing voltage supervision
• Embedded controllers utilizing chip-enable power gating

Procurement Notes

Verify the specific suffix designation carefully as part numbers may vary slightly between tape-and-reel and cut-tape formats. Confirm availability status directly with authorized distributors since this component is listed as discontinued in several major channels. Ensure compatibility with existing PCB footprints for the SOT-23-8 package before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 3.08 V threshold is required for precise voltage monitoring. Consider the 15 uA quiescent current for strict power budget constraints in portable applications. Verify that the active high output logic aligns with the downstream microcontroller or FPGA reset requirements without additional inversion circuitry.

Part Context

This device belongs to the MAX6368H series of uP supervisory circuits designed for low-power applications. It shares architectural similarities with other variants in the family but differs in its specific voltage threshold setting. The series emphasizes minimal power consumption while providing essential reset and battery backup functions for embedded systems.

Replacement Considerations

Direct substitutes include MAX6368LKA31+T and MAX6368HKA31+T which share identical pinouts and functional characteristics. Verify threshold voltage specifications match exactly at 3.08 V when selecting alternative sources from different manufacturers.