MAX6345LUT+T

Overview

The MAX6345LUT+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a compact SOT-23-6 surface-mount package. This device integrates a power-fail comparator and a reset generator to monitor system voltage levels. It operates within an input voltage range of 1.2V to 5.5V, ensuring compatibility with various logic families. The circuit provides a manual reset input for user-initiated system resets and features a fixed reset delay time of 200ms to guarantee stable power-up sequences. Designed for reliability, it maintains functionality across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates a power-fail comparator alongside a dedicated reset generator for comprehensive voltage supervision.
• Includes a manual reset input pin allowing direct user control over system reset states.
• Provides a fixed reset delay period to ensure adequate power stabilization during startup sequences.

Applications

• Microprocessor system power monitoring
• Battery-powered device voltage supervision
• Embedded controller reset generation

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm exact suffix specifications match design requirements as variations exist within the family. Check current lifecycle status as availability may be limited or subject to discontinuation notices. Ensure thermal management aligns with specified power dissipation limits in the final assembly.

Selection Notes

Select this component when a combined power-fail indication and reset signal are required in a minimal footprint. Compare threshold voltages against specific supply rails to ensure accurate triggering. Evaluate the fixed delay duration against processor startup times to prevent premature initialization. Consider the SOT-23-6 package constraints for PCB layout and thermal performance in dense designs.

Part Context

This part belongs to the MAX6345 series of low-power supervisory circuits designed for portable and battery-operated electronics. It serves as a critical interface between power supplies and digital logic, preventing erratic behavior caused by brown-out conditions. The series emphasizes small size and low quiescent current to extend battery life while maintaining robust system protection standards.

Replacement Considerations

Consult official cross-reference guides for electrically compatible alternatives. Verify pinout compatibility before substitution to avoid board redesign. Ensure replacement parts meet identical voltage thresholds and delay specifications.