MAX6366PKA44

Overview

The MAX6366PKA44 is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a threshold voltage of 4.38 V for monitoring a single input channel. The device provides an active-low, open-drain reset output with a typical reset delay time of 280 ms. Key functional features include a built-in watchdog timer, battery backup switching capability, and chip enable gating. It is housed in an SOT-23-8 surface-mount package and supports operation across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates a watchdog timer for system fault recovery
• Includes battery backup switching functionality
• Supports chip enable gating for power management

Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing voltage supervision
• Industrial control units operating in harsh environments

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements before procurement. Check for obsolescence notices as this part may be subject to limited availability or end-of-life restrictions. Ensure packaging specifications match assembly line requirements.

Selection Notes

Select this component when a single-channel supervisor with watchdog and battery backup is required. Compare threshold voltages against target rail levels to ensure accurate triggering. Evaluate package compatibility with existing PCB footprints. Consider alternative series members if different output polarities or reset delays are needed.

Part Context

This part belongs to the MAX6366P series of uPower supervisors designed for portable applications. It shares architectural similarities with other Maxim Integrated supervisory ICs but offers specific threshold and feature combinations tailored for cost-sensitive, space-constrained designs.

Replacement Considerations

Consult official cross-reference guides for verified substitutes. Verify pinout compatibility and electrical parameter alignment before substitution.