MAX6366HKA46+

Overview

The MAX6366HKA46+ is a uPower supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2V to 5.5V and features an adjustable reset threshold voltage, specifically set at 4.63V for this suffix variant. The device provides an active-high, open-drain reset output with a fixed 280ms timeout delay. It includes a battery backup switch function and lacks manual reset or watchdog timer capabilities. The component is housed in an SOT-23-8 package and supports surface-mount installation.

Feature Summary

• Provides precise voltage supervision with an adjustable reset threshold for flexible system monitoring.
• Integrates a battery backup switch to manage power transitions between main and backup sources.
• Features low quiescent current consumption suitable for battery-powered applications.
• Delivers a reliable active-high reset signal with a defined timeout delay.

Applications

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing backup power switching
• Embedded controllers requiring voltage supervision

Procurement Notes

Verify the specific part number suffix HKA46 to confirm the 4.63V threshold setting. Confirm RoHS compliance status through official documentation. Check current lifecycle status as distribution availability may vary. Ensure the SOT-23-8 package footprint matches your PCB design requirements before procurement.

Selection Notes

Select this component when an adjustable reset threshold near 4.63V is required alongside battery backup functionality. Consider the active-high open-drain output configuration for interface compatibility. Evaluate the 280ms timeout delay against system startup requirements. Compare quiescent current specifications if power efficiency is critical for the application.

Part Context

This part belongs to the MAX6366 series of uPower supervisors from Maxim Integrated. The series offers various threshold voltages and package options. The HKA46 suffix denotes the specific adjustable threshold setting and package type. This family is designed for low-power embedded applications requiring reliable voltage monitoring.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure replacement parts match the SOT-23-8 package and pinout. Verify that alternative components support the same 4.63V threshold and active-high output polarity. Confirm compatibility with the 1.2V to 5.5V operating voltage range.