MAX6865UK44D4L+T

Supervisors Overview

The MAX6865UK44D4L+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 4.375 V. The device provides an active low, push-pull output with a manual reset capability and includes an integrated watchdog timer. It offers a reset delay time of 225 ms and consumes a typical operating supply current of 7 uA. The component is housed in a compact SOT-23-5 surface-mount package and supports operation across an extended temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault detection alongside voltage supervision
• Provides manual reset functionality via dedicated input pin
• Features active low push-pull output driver for robust signal interfacing
• Designed for low-power applications with minimal quiescent current consumption

Supervisors Applications

• Portable electronic devices requiring reliable power monitoring
• Embedded systems needing watchdog timer protection
• Battery-operated equipment with strict power budget constraints
• Industrial control modules operating in extended temperature environments

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against datasheet specifications. Check manufacturing date codes for compatibility with existing assembly processes. Ensure storage conditions meet moisture sensitivity level requirements prior to reflow soldering. Validate electrical parameters against original design specifications before integration.

Supervisors Selection Notes

Evaluate threshold voltage accuracy against target supply rail requirements. Consider the active low output polarity for logic interface compatibility. Assess watchdog timer timeout periods relative to processor clock speeds. Verify manual reset input availability within the system architecture. Compare operating temperature range with environmental exposure expectations.

Supervisors Part Context

This component belongs to the MAX6865 series of single nPower supervisors. It shares architectural similarities with other variants in the family, differing primarily in threshold voltage settings and output characteristics. The series targets applications requiring comprehensive power management supervision in small form factors.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available. The product status is listed as obsolete or limited supply. Designers should review alternative supervisor ICs from the manufacturer's current portfolio that match the required threshold voltage and package dimensions.