MAX6367HKA29

Overview

The MAX6367HKA29+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 2.9 V for monitoring power rails. The device provides an active high, open-drain reset output with a typical reset delay time of 280 ms. It includes a battery backup switch and chip-enable gating functionality while lacking manual reset or watchdog timer capabilities. Designed for surface-mount installation in SOT-23-8 packages, it supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates battery backup switching and chip-enable gating for system control
• Provides active high open-drain reset output for reliable signal interfacing
• Operates with ultra-low quiescent current suitable for power-sensitive designs

Applications

• Microprocessor power supply monitoring
• Battery backup circuit management
• System reset generation in embedded controllers

Procurement Notes

Verify the specific suffix (+T) indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official documentation as manufacturing processes may evolve. Check availability status carefully since this component family has faced discontinuation or limited supply conditions across various distributors. Ensure the selected variant matches the required threshold voltage and package type for your design.

Selection Notes

Select this component when a fixed 2.9 V threshold is required for voltage supervision. Consider the active high output polarity and lack of manual reset against system requirements. Evaluate the SOT-23-8 footprint constraints and operating temperature range suitability. Compare against other MAX6367 variants if different thresholds or output polarities are needed.

Part Context

This part belongs to the MAX6367 series of low-power uP supervisory ICs. It shares functional similarities with the MAX6365 and MAX6368 families but differs in specific threshold voltages and feature sets like watchdog timers. The H-series designation typically denotes specific threshold options within the broader product line.

Replacement Considerations

Direct substitutes include other MAX6367 variants with matching 2.9 V thresholds such as MAX6367LKA29. Cross-reference pinouts and electrical characteristics before substitution.