MAX6865UK17D4S+T

Supervisors Overview

The MAX6865UK17D4S+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 factory-trimmed reset threshold of 1.665 V. The device utilizes an active high, push-pull output configuration and includes a manual reset input alongside a watchdog timer function. It provides a minimum reset timeout period of 1.2 s. Designed for surface mount installation in a compact SOT-23-5 package, it supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates voltage monitoring, watchdog timer, and manual reset functions into a single five-pin package.
• Provides a deterministic reset signal via an active high, push-pull output when monitored voltage drops below the threshold.
• Maintains low quiescent current consumption suitable for battery-powered applications.

Supervisors Applications

• Microprocessor system power supervision
• Portable electronic devices requiring low standby current
• Industrial control systems with watchdog requirements

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeit risks. Confirm RoHS compliance status and lead-free certification prior to integration. Check for obsolescence notices as this series may have limited availability. Ensure packaging specifications match design requirements for automated assembly processes.

Supervisors Selection Notes

Select this component when a fixed 1.665 V threshold is required for single-rail monitoring. The active high push-pull output suits logic interfaces needing strong drive capability. Consider alternative MAX6865 variants if different threshold voltages or open-drain outputs are preferred. Verify that the 1.2 s minimum timeout meets system startup timing constraints.

Supervisors Part Context

Part of the MAX6854–MAX6869 family of nanowatt microprocessor supervisory circuits. These devices combine voltage monitoring, watchdog, and manual reset in a small SOT-23 footprint. The MAX6865 variant specifically offers an active high push-pull output, distinguishing it from open-drain counterparts like the MAX6866.

Supervisors Replacement Considerations

Direct substitutes include other MAX6865 variants with different threshold voltages (e.g., MAX6865UK19D4S+T for 1.9 V). Cross-family replacements require verifying output polarity and timeout characteristics against system requirements.