MAX6344TUT

Overview

The MAX6344TUT is a microprocessor supervisory circuit from the MAX6342–MAX6345 family, designed to monitor power supplies in digital systems. It features a fixed reset threshold voltage of +4.38V and operates with supply voltages between +1V and +5.5V. The device includes a +1.25V threshold detector for power-fail warnings or low-battery detection. It utilizes an active-low push-pull reset output and is housed in a 6-pin SOT-23 package.

Feature Summary

• Monitors power-supply voltages within the +1V to +5.5V range
• Provides factory-trimmed reset threshold at +4.38V
• Includes dedicated +1.25V threshold detector for auxiliary monitoring

Applications

• Digital system power supply monitoring
• Low-battery detection circuits
• Power-fail warning generation

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as datasheet indicates lead-free options may vary. Check manufacturing date codes against project requirements. Ensure ESD handling protocols are followed during storage and assembly. Validate package marking against official specifications.

Selection Notes

Select this part when a fixed 4.38V threshold is required alongside a separate 1.25V monitoring channel. Suitable for single-supply applications operating up to 5.5V. Consider the SOT-23-6 footprint constraints. Verify that the active-low push-pull output drives the target load correctly without external pull-ups.

Part Context

Part of the MAX634x series offering improved reliability over discrete components. Provides integrated supervision functions in a compact surface-mount package. Designed for cost-sensitive embedded applications requiring precise voltage monitoring without complex configuration.

Replacement Considerations

Direct substitutes include MAX6342TUT (with manual reset input) and MAX6343TUT. Verify pin compatibility and threshold voltage alignment before substitution. Ensure functional equivalence regarding the +1.25V detector presence.