MAX6366HKA44+

Overview

The MAX6366HKA44+ is a uPower 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 fixed threshold voltage of 4.40 V for monitoring a single input. The device provides an active high, open-drain output with a reset delay time of 280 ms. It includes a chip enable signal and battery backup switch functionality but lacks manual reset and watchdog timer capabilities. The component is housed in an SOT-23-8 package and supports surface mount installation.

Feature Summary

• Provides low-power voltage supervision with ultra-low quiescent current consumption
• Features adjustable overvoltage threshold detection capability
• Includes chip enable pin for power management control
• Supports battery backup switching for continuous monitoring

Applications

• Portable electronic devices requiring efficient power monitoring
• Battery-operated systems needing voltage supervision
• Embedded circuits utilizing chip enable power control
• Applications requiring adjustable overvoltage protection

Procurement Notes

Verify the specific suffix 'HKA44' against official datasheets to confirm the 4.40 V threshold and active high open-drain output configuration. Confirm RoHS compliance status and lead times through authorized distributors as availability may vary. Ensure the SOT-23-8 package footprint matches your PCB design requirements before procurement.

Selection Notes

Select this component when a fixed 4.40 V supervisory threshold is required for single-input monitoring. Choose the active high open-drain output variant if compatible with your system logic levels. Consider the 15 uA operating current for battery-sensitive designs. Verify that the absence of a manual reset or watchdog timer aligns with your application's safety and control requirements.

Part Context

This part belongs to the MAX6366 series of uPower Supervisory Circuits from Maxim Integrated. The series offers various threshold voltages and output configurations to suit different power monitoring needs. The HKA44 designation specifically indicates the 4.40 V threshold version within the SOT-23-8 package family.

Replacement Considerations

Check for other MAX6366 variants with similar thresholds or output types. Consult official substitution guides for cross-references within the Analog Devices portfolio.