MAX6729KAVHD3+

Supervisors Overview

The MAX6729KAVHD3+T is a dual uPower supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It features three monitored inputs with threshold voltages ranging from 1.8 V to 5 V and 900 mV to 3.3 V, including one adjustable channel. The device provides active low push-pull outputs and includes manual reset and watchdog timer functionalities. It operates within a supply voltage range up to 5.5 V, consumes 15 µA of working current, and has a reset delay time of 210 ms. The component is housed in an SOT-23-8 package and supports surface mount installation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Dual ultra-low power supervision architecture for efficient battery management
• Integrated watchdog timer with configurable timeout functionality
• Manual reset input capability for system control flexibility
• Push-pull output structure ensuring robust signal driving

Supervisors Applications

• Portable electronic devices requiring extended battery life
• Embedded systems needing reliable power failure detection
• Microcontroller-based designs with watchdog requirements
• Industrial control units operating in variable thermal environments

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against SOT-23-8 specifications. Validate electrical parameters against original datasheet limits before integration. Check for moisture sensitivity level compliance during storage handling. Ensure replacement strategies account for end-of-life constraints.

Supervisors Selection Notes

Evaluate threshold voltage compatibility with target supply rails. Consider the impact of 15 µA quiescent current on overall system efficiency. Assess whether the 210 ms reset delay meets timing requirements. Verify that the active low push-pull output suits downstream logic interfaces. Review thermal performance within the specified operating temperature range.

Supervisors Part Context

This component belongs to the MAX6729 series of supervisory circuits designed for low-power applications. It complements other Maxim Integrated supervisors like the MAX6726 and MAX6728, offering specific dual-supervisor features with integrated watchdog capabilities. The part represents a specialized solution for monitoring multiple voltage lines in compact surface-mount packages.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: MAX6729KAVHD3+T