MAX6865UK28D3L+T

Supervisors Overview

The MAX6865UK28D3L+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.8 V. The device provides an active-high, push-pull reset output with a manual reset capability. It includes a watchdog timer function and supports a minimum reset timeout of 150 ms. The component is designed for surface-mount installation in SOT-23-5 packages and functions reliably across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault monitoring alongside standard voltage supervision.
• Provides an active-high push-pull output stage for robust drive capability.
• Includes manual reset functionality allowing external control over the reset state.

Supervisors Applications

• Embedded systems requiring reliable power-on reset sequences
• Microprocessor and microcontroller supply monitoring
• Industrial control circuits operating in harsh environments

Supervisors Procurement Notes

This component is officially listed as obsolete or end-of-life. Verification of current availability requires checking distributor stock status directly. Ensure compatibility with existing designs before considering alternatives, as lead times may vary significantly for remaining inventory.

Supervisors Selection Notes

Select this part when an active-high output is required, distinguishing it from other variants in the series that offer active-low outputs. Verify that the 2.8 V threshold aligns with the monitored rail voltage. Confirm that the SOT-23-5 package fits the board layout constraints and that the manual reset pin is utilized if needed.

Supervisors Part Context

Part of the MAX6865 nPower Supervisor family, which offers various threshold voltages and output polarities. This specific suffix indicates the 2.8 V threshold, active-high output, and SOT-23-5 packaging configuration within the broader Maxim Integrated portfolio.

Supervisors Replacement Considerations

Check for MAX6865UK28D3L+ without the trailing T if reel quantity is not required. Other family members like MAX6865UK29D3L+T share similar features but differ in threshold voltage.