MAX6339IUT-T

Overview

The MAX6339IUT-T is a quad voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a compact SOT-23-6 surface-mount package. It monitors four independent power rails with threshold voltages of 1.58 V, 2.78 V, and 4.63 V, alongside an adjustable channel. The device features active-low open-drain outputs and provides a reset delay time of 140 ms. Operating within a supply voltage range up to 5.5 V, it functions reliably across temperatures from -40°C to +85°C while consuming low quiescent current.

Feature Summary

• Monitors four distinct voltage inputs simultaneously for comprehensive power system oversight
• Provides active-low open-drain reset signals upon detection of out-of-specification voltages
• Integrates an adjustable threshold channel to accommodate custom voltage requirements

Applications

• Multi-rail embedded systems requiring simultaneous power integrity verification
• Portable electronic devices utilizing multiple battery or regulator sources
• Industrial control units needing reliable supervision of mixed-voltage logic levels

Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct threshold selections and package variants. Confirm RoHS compliance status and manufacturing origin through authorized distributors. Check for obsolescence notices as older Maxim products may have limited availability or replacement recommendations from Analog Devices.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage domains is required in a minimal footprint. The inclusion of an adjustable threshold allows flexibility for non-standard rail voltages. Ensure the open-drain output capability aligns with the downstream logic interface requirements and that the 140 ms timeout meets system startup timing constraints.

Part Context

This part belongs to the MAX6339P family of quad voltage supervisors designed for space-constrained applications. It consolidates four individual monitor circuits into a single SOT-23-6 package, reducing board area compared to discrete solutions. The series is engineered for low-power operation suitable for battery-driven equipment.

Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Verify pin compatibility and electrical parameter alignment before substituting.