MAX6366PKA23-T

Overview

The MAX6366PKA23+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of up to 5.5 V and features a threshold voltage of 2.32 V with an overvoltage threshold of 2.38 V. The device provides an active-low, open-drain reset output with a fixed reset delay time of 280 ms. It includes a built-in watchdog timer and a battery backup switch for seamless power transition. The chip enable signal allows for gating functionality. Operating current is specified at 15 uA. The component is housed in an SOT-23-8 package and supports surface mount installation across a temperature range of -40 C to +85 C.

Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Includes a battery backup switch for uninterrupted operation during power transitions
• Features chip-enable gating capability for power management control

Applications

• Low-power microprocessor systems requiring voltage supervision
• Battery-powered devices needing backup switching functionality
• Embedded systems utilizing chip-enable signals for power gating

Procurement Notes

Verify the exact suffix configuration when sourcing replacements, as variations such as +T or + indicate specific packaging or lead-free status differences. Confirm availability status directly with authorized distributors, as this component may be subject to limited supply or discontinuation notices. Ensure that the SOT-23-8 footprint matches the target PCB design before finalizing procurement decisions.

Selection Notes

Select this component when a dedicated voltage supervisor with integrated watchdog and battery backup is required. The 2.32 V threshold suits applications monitoring 3.3 V or similar logic levels. Consider the active-low open-drain output compatibility with downstream logic interfaces. Verify that the 15 uA operating current aligns with strict power budget constraints in portable or battery-operated designs.

Part Context

This part belongs to the MAX6366P series of low-power microprocessor supervisors. The series is characterized by minimal quiescent current and compact SOT-23 packaging. These circuits are designed to provide reliable reset generation and system protection in space-constrained electronic applications where power efficiency and functional safety are critical requirements.

Replacement Considerations

Cross-reference with other MAX6366 variants sharing the same package but differing thresholds if voltage levels require adjustment. Verify pinout compatibility before substituting with generic supervisor ICs.