MAX6368HKA31+

Overview

The MAX6368HKA31+ is a low-power 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 3.08V. The device provides an active-high, open-drain output with a standard reset delay time of 280ms. It includes a battery backup switch for seamless transition between power sources and utilizes a chip enable signal for power management. The component is housed in an SOT-23-8 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a battery backup switch to maintain system state during power transitions
• Provides precise voltage monitoring with a fixed threshold for reliable reset generation
• Features low quiescent current consumption suitable for battery-powered applications

Applications

• Portable electronic devices requiring efficient power management
• Microprocessor systems needing accurate voltage supervision
• Battery-operated equipment ensuring data integrity during power loss

Procurement Notes

Verify the specific suffix 'K' indicates the tape and reel packaging configuration when sourcing. Confirm that the '+T' designation aligns with the required shipping format for automated assembly processes. Ensure compatibility with existing PCB footprints for the SOT-23-8 package. Check for any regional distribution restrictions or limited availability status associated with this specific part number variant.

Selection Notes

Select this component when a fixed 3.08V threshold is required for system supervision. Choose the active-high open-drain output configuration for interfacing with logic families requiring high-level signaling. Consider the integrated battery backup feature if maintaining memory or state during power outages is critical. Evaluate the low power consumption against total system budget constraints.

Part Context

This part belongs to the MAX6368 series of uPower Supervisors designed for low-voltage applications. The series offers various threshold options and output configurations to suit different system requirements. The HKA31 variant specifically targets applications needing a 3.08V reset point with active-high output capabilities.

Replacement Considerations

Consult official documentation for direct pin-compatible substitutes within the MAX6368 family. Verify functional equivalence regarding threshold voltage and output polarity before substitution.