MAX6340UK26+T

Overview

The MAX6340UK26+T is a micropower voltage supervisor manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.7 V to 5.5 V and features an active-low open-drain reset output. The device provides a fixed threshold voltage of 2.6 V with a maximum accuracy of 1%. It includes a programmable reset pulse duration timer, adjustable from 140 ms to 400 ms in 10 ms increments via external components. The IC functions reliably across an industrial temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 package.

Feature Summary

• Micropower operation with low quiescent current consumption suitable for battery-powered applications
• Fixed 2.6 V threshold voltage with high precision for reliable monitoring
• Programmable reset pulse duration timer allows customization of delay times
• Active-low open-drain reset output ensures compatibility with various logic families

Applications

• Portable handheld devices requiring efficient power management
• Battery-operated equipment needing low-power supervision
• Microprocessor systems requiring precise voltage monitoring
• Embedded controllers in industrial environments

Procurement Notes

Verify the specific suffix 'UK26' corresponds to the 2.6 V threshold variant when sourcing. Confirm that the '+T' designation indicates tape-and-reel packaging compatible with automated assembly processes. Ensure the component meets RoHS standards if required by your manufacturing specifications. Cross-reference the manufacturer's latest documentation to confirm availability status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a fixed 2.6 V supervision level is required for low-voltage microprocessors. Consider its micropower characteristics for extending battery life in portable electronics. Evaluate the programmable timer feature against system startup requirements to determine if external timing components are necessary. Verify that the SOT-23-5 package fits within the spatial constraints of the target PCB design while maintaining adequate thermal performance.

Part Context

This part belongs to the MAX6340 family of micropower voltage supervisors designed for critical system monitoring. It complements other Maxim Integrated solutions by offering precise threshold detection with minimal power overhead. The series supports various threshold voltages and packaging options to accommodate diverse application needs. Its integration into broader power management strategies helps ensure system stability during brown-out conditions.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6340 series that offer different threshold voltages or packaging styles. Verify functional equivalence regarding reset output polarity and timer functionality when considering substitutes. Consult the manufacturer's cross-reference guide for officially recommended replacements to ensure compatibility.