MAX6865UK39D1S+T

Supervisors Overview

The MAX6865UK39D1S+T 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 precise threshold voltage of 3.9 V for monitoring input lines. The device provides an active high, push-pull output type and includes manual reset functionality alongside a built-in watchdog timer. It does not support battery backup switching. The reset delay time is specified at 15 ms, with a maximum power dissipation of 571 mW. Operating temperatures range from -40°C to +85°C in a surface-mount SOT-23-5 package.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Provides manual reset capability via dedicated input
• Features active high push-pull output driver

Supervisors Applications

• Single nPower supervisor applications
• Voltage supervisory circuits requiring manual reset
• Embedded systems with watchdog requirements

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm RoHS compliance documentation matches current regulatory standards. Validate part marking against official datasheet specifications to prevent counterfeit substitution. Check for alternative sourcing options as standard availability may be limited.

Supervisors Selection Notes

Select this component when an active high output is required for the supervisory signal. Ensure the monitored voltage aligns with the 3.9 V threshold specification. Consider the SOT-23-5 package constraints for PCB layout. Verify that the 15 ms reset delay meets system timing requirements during power-up events.

Supervisors Part Context

This part belongs to the MAX6865 series of single-channel power supervisors. It shares functional similarities with other variants in the family but differs in threshold voltage and output polarity. The 'UK' suffix indicates specific pinout and thermal characteristics. The '+T' designation denotes tape-and-reel packaging configuration.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.