MAX6864UK22D3L+

Supervisors Overview

The MAX6864UK22D3L+ is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range up to 5.5 V and features a fixed reset threshold of 2.2 V with an overvoltage threshold of 2.255 V. The device provides an active-low, push-pull output and includes a manual reset input alongside a watchdog timer function. It consumes 7 µA of operating current and offers a reset delay time of 225 ms. The component is housed in a compact SOT-23-5 package and supports surface mount installation across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates voltage monitoring, manual reset input, and watchdog timer functions into a single five-pin package.
• Provides factory-trimmed reset threshold voltages for precise power supervision without external components.
• Features low quiescent current consumption suitable for battery-powered applications.
• Includes a dedicated manual reset pin allowing system initialization via external switch.

Supervisors Applications

• Microprocessor (µP) power supply monitoring
• Battery-operated electronic devices
• Portable instrumentation systems

Supervisors Procurement Notes

Verify the complete part number including suffixes such as D3L and T against official datasheets to ensure correct threshold voltage and packaging configuration. Confirm RoHS compliance status and manufacturing origin with the supplier. Check for obsolescence notices or lifecycle changes from Analog Devices prior to procurement. Ensure compatibility with existing PCB footprint and reflow soldering profiles.

Supervisors Selection Notes

Select this component when a fixed 2.2 V threshold is required for single-supervision tasks. Consider the 7 µA current draw for energy efficiency requirements. Verify that the SOT-23-5 package fits the design constraints. Evaluate if the integrated watchdog timer meets timing specifications for the target microcontroller. Compare against other MAX6864 variants with different threshold voltages if the 2.2 V level is unsuitable.

Supervisors Part Context

This device belongs to the MAX6864 series of nanopower microprocessor supervisory circuits. The series combines voltage monitoring, watchdog timer, and manual reset capabilities in a small form factor. These circuits are designed for applications requiring reliable power management with minimal current drain. The specific UK22 variant denotes the 2.2 V reset threshold setting within the broader product family.

Supervisors Replacement Considerations

Consult the official MAX6864 datasheet for cross-reference information. Verify electrical parameters and pinout compatibility before substituting with other supervisory ICs. No direct public substitute part numbers are confirmed in the provided documentation.