MAX6865UK42D4L+T

Supervisors Overview

The MAX6865UK42D4L+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 of up to 5.5 V and features a fixed threshold voltage of 4.2 V with an overvoltage threshold of 4.305 V. The device provides a manual reset input, incorporates a watchdog timer, and delivers an active high push-pull output. It exhibits a reset delay time of 1.8 s and consumes a typical operating supply current of 7 uA. Designed for surface mount installation in SOT-23-5 packages, it functions reliably across an extended temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function alongside voltage supervision capabilities.
• Features a manual reset input for direct user control over system state.
• Delivers an active high push-pull output signal for logic compatibility.

Supervisors Applications

• Embedded systems requiring power supply monitoring
• Microcontroller-based designs needing reliable reset generation
• Industrial equipment utilizing low-power supervisory circuits

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against datasheet specifications. Validate electrical parameters including threshold voltage and reset delay times during incoming inspection. Ensure storage conditions comply with moisture sensitivity level requirements. Cross-reference manufacturer documentation for any recent design changes or obsolescence notices prior to integration.

Supervisors Selection Notes

Evaluate the fixed 4.2 V threshold against target supply rails to ensure proper triggering. Consider the 1.8 s reset delay duration relative to system startup requirements. Assess the active high output polarity for compatibility with downstream logic inputs. Verify that the SOT-23-5 footprint aligns with existing PCB layout constraints. Confirm operational temperature range suitability for the intended environment.

Supervisors Part Context

This component belongs to the MAX6865 series of single nPower supervisors. It shares common architectural features with other variants in the family, such as low quiescent current and integrated watchdog functionality. The specific suffix indicates its threshold voltage and package configuration within the broader product line designed for compact embedded applications.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential end-of-life alternatives or recommended upgrades.