MAX6365LKA31-T

Overview

The MAX6365LKA31-T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.2V to 5.5V and features a fixed reset threshold voltage of 3.08V. The device provides an active-low, push-pull output with a typical reset delay time of 280ms. It incorporates a manual reset input and a battery backup switch for seamless power transitions. The IC draws a maximum operating supply current of 15uA and supports chip-enable gating. It is housed in an SOT-23-8 package and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a battery backup switch to maintain system state during primary power loss
• Supports chip-enable gating to manage power consumption states
• Provides manual reset capability via dedicated input pin
• Delivers active-low push-pull reset signal with defined delay

Applications

• Portable consumer electronics requiring extended battery life
• Embedded systems needing reliable power-fail detection
• Microcontroller-based designs with critical data retention requirements
• Industrial control units operating in variable temperature environments

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the '31' designation corresponds to the 3.08V threshold voltage required by your design specifications. Ensure compatibility with the SOT-23-8 footprint on your PCB layout. Check manufacturer documentation for any updates regarding lead-free compliance or RoHS status prior to final procurement decisions.

Selection Notes

Select this component when a fixed 3.08V threshold is appropriate for the monitored rail. Consider the 15uA quiescent current for strict power budget constraints. Evaluate the need for chip-enable functionality versus standard operation. Ensure the active-low output polarity matches the target microcontroller's reset input requirements without additional inversion logic.

Part Context

This part belongs to the MAX6365L series of low-power uP supervisory circuits. The series offers various threshold voltages and packages to suit different monitoring needs. The MAX6365LKA31-T specifically targets applications requiring precise 3.08V supervision with low standby current consumption in a compact surface-mount form factor.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference threshold voltages and package dimensions carefully. Verify functional equivalence regarding battery backup and chip-enable features before replacing.