MAX6366PKA46

Overview

The MAX6366PKA46 is a low-power voltage supervisory circuit manufactured by Analog Devices / Maxim Integrated. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 4.63 V for monitoring a single input. The device provides an active-low, open-drain output with a reset delay time of 280 ms. Key functional attributes include an integrated watchdog timer, battery backup switch capability, and chip-enable gating. It consumes only 15 uA of operating current and includes an overvoltage threshold of 4.75 V. The component is housed in an SOT-23-8 package and supports operation across a temperature range from -40 C to +85 C.

Feature Summary

• Integrates a watchdog timer for system fault detection
• Supports battery backup switching for data retention
• Includes chip-enable gating for power management control

Applications

• Portable equipment requiring low-power supervision
• Battery-operated systems needing backup switching
• Embedded controllers utilizing watchdog functionality

Procurement Notes

Verify the exact suffix designation (+T) against official datasheets to confirm packaging type and availability status. Confirm RoHS compliance details directly with the manufacturer or authorized distributors. Check for obsolescence notices as this series may have limited stock or be subject to discontinuation. Ensure the specific threshold voltage matches the design requirements before procurement.

Selection Notes

Select this component when a fixed 4.63 V threshold is required for single-input monitoring. Consider the 15 uA quiescent current for battery-sensitive designs. Verify that the SOT-23-8 package fits the board layout constraints. Ensure the application does not require manual reset functionality, as this variant lacks that feature. Confirm compatibility with the 280 ms reset timeout duration.

Part Context

This part belongs to the MAX6366P series of low-power supervisors. It shares architectural similarities with other variants in the family but differs in threshold voltage and package options. The series is designed for applications demanding minimal power consumption while providing essential voltage monitoring and system protection features through integrated watchdog and backup capabilities.

Replacement Considerations

Consult official substitution guides for equivalent parts with matching thresholds. Verify pinout compatibility if replacing with similar supervisor ICs. Ensure the replacement supports the same SOT-23-8 footprint and electrical specifications.