MAX6339IUT

Overview

The MAX6339IUT is a quad voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an SOT-23-6 package. It monitors four independent input voltages with thresholds of -5 V, 3.3 V, 5 V, and an adjustable setting. The device features active low open drain outputs and a fixed reset delay time of 200 ms. It operates within a supply voltage range up to 5.5 V and maintains accuracy within 5%. The component supports surface mount installation and functions reliably across a temperature range from -40°C to +85°C.

Feature Summary

• Monitors four distinct power supply rails simultaneously using dedicated inputs
• Provides active low open drain reset signals for system control integration
• Includes a factory-set 200 ms reset timeout period to ensure stable power-up sequences

Applications

• Multi-rail embedded system power management
• Industrial controller voltage supervision
• Telecommunications equipment monitoring

Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm threshold settings and package type. Ensure compatibility with required operating temperatures and supply voltage ranges before integration. Cross-reference manufacturer part numbers to avoid confusion with similar series components that may have different electrical characteristics or pinouts.

Selection Notes

Select this component when simultaneous monitoring of four voltage lines is required in a compact footprint. Consider the fixed 200 ms reset delay and open drain output topology for interface compatibility. Evaluate the 5% accuracy specification against system tolerance requirements. Confirm that the SOT-23-6 package dimensions fit the available board space constraints.

Part Context

This component belongs to the MAX6339P series of microprocessor supervisory circuits designed for low-power applications. It is part of Analog Devices' portfolio of power management solutions intended to protect sensitive electronics from undervoltage conditions. The series offers various threshold combinations to accommodate standard logic and memory supply voltages.

Replacement Considerations

Consult official substitution guides for verified alternatives within the same product family. Ensure any replacement matches the SOT-23-6 package and quad-channel architecture. Verify that electrical parameters such as reset delay and output type remain compatible with the existing design.