MAX6339AUT-T

Overview

The MAX6339AUT-T is a quad voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors four independent power supply rails using open-drain active-low outputs. The device operates within a supply voltage range of 1V to 5.5V and features a typical quiescent current of 55µA. It provides a fixed reset delay time of 200ms with an accuracy of 5%. The component is housed in a compact SOT-23-6 package and supports an operating temperature range from -40°C to +85°C, ensuring reliable system supervision for multi-rail applications.

Feature Summary

• Monitors four independent voltage inputs simultaneously
• Provides active-low open-drain reset signals
• Features low quiescent current consumption
• Includes a fixed 200ms reset delay timer

Applications

• Multi-rail power supply monitoring systems
• Embedded microprocessor reset circuits
• Industrial control board supervision
• Telecommunications equipment power management

Procurement Notes

Verify the specific suffix 'AUT' against official datasheets to confirm threshold voltages and package details. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the source document matches the exact part number to avoid confusion with similar MAX6339 variants that may have different electrical characteristics or pin configurations.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage rails is required in space-constrained designs. The SOT-23-6 package offers a small footprint suitable for dense PCB layouts. Consider the 5% accuracy and 200ms delay for timing-sensitive applications. Verify that the monitored voltage levels fall within the specified input range and that the open-drain output configuration aligns with the downstream logic requirements.

Part Context

The MAX6339 series belongs to Maxim Integrated's uPower supervisor family, designed for low-power multi-voltage monitoring. These devices are commonly used in portable electronics and industrial systems where multiple power domains require independent supervision. The AUT variant specifically denotes a particular threshold configuration and temperature grade within the broader MAX6339 product line.

Replacement Considerations

Check for direct cross-references such as ADM6339 variants which offer similar functionality with potentially improved accuracy specifications. Verify pin compatibility and electrical parameters before substituting with other quad supervisors from different manufacturers.