MAX6344LUT

Overview

The MAX6344LUT 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 warning or low-battery detection. It utilizes a PDSO6 package (SOT-23) with 6 pins. The component supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Monitors power-supply voltages to improve system reliability
• Includes a dedicated power-fail comparator for additional monitoring
• Provides factory-trimmed reset threshold voltages

Applications

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

Procurement Notes

Verify the specific suffix 'LUT' against official Maxim Integrated documentation to confirm pinout and electrical characteristics. Ensure compliance with RoHS directives if required by your application standards. Confirm lead-free status as some variants may differ. Cross-reference the exact part number with current datasheets to validate availability and manufacturing status.

Selection Notes

Select this component when a fixed 4.38V reset threshold is required within a 1V to 5.5V supply range. The integrated power-fail comparator allows for monitoring secondary rails or battery levels without external components. Consider the SOT-23 package size for space-constrained designs requiring high reliability.

Part Context

Part of the MAX6342–MAX6345 family of µP supervisory circuits. These devices replace separate ICs or discrete components to enhance accuracy and reliability. The family offers various factory-trimmed thresholds from 2.33V to 4.63V, catering to different logic voltage requirements in embedded systems.

Replacement Considerations

Other members of the MAX6342–MAX6345 family offer different fixed reset thresholds. Verify that alternative part numbers match the required 4.38V threshold and package type. Check for functional equivalents in newer Analog Devices portfolios if the original series is discontinued.