MAX6339MUT+

Overview

The MAX6339MUT+ is a quad voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors four independent power supply rails simultaneously within a compact SOT-23-6 surface-mount package. The device features open-drain or open-collector active-low reset outputs that assert when monitored voltages fall below factory-set thresholds. Key electrical parameters include a maximum supply voltage of 5.5 V, a minimum reset timeout of 140 ms, and an operating temperature range from -40°C to +85°C. Threshold voltages are specified as 2.63 V, 4.38 V, adjustable, and -4.38 V.

Feature Summary

• Simultaneous monitoring of four distinct voltage rails
• Active-low reset output with configurable timeout delay
• Low-power operation suitable for battery-backed systems
• Compact six-pin surface-mount packaging

Applications

• Multi-rail embedded system power supervision
• Portable electronic device power management
• Industrial control board voltage monitoring
• Telecommunications equipment power integrity verification

Procurement Notes

Verify the specific threshold voltage configuration required for your application, as the MAX6339 series offers various fixed and adjustable combinations. Confirm the exact suffix designation matches the desired voltage levels and package type. Ensure compatibility with your system's reset timing requirements against the minimum 140 ms specification. Check for RoHS compliance status if mandated by your manufacturing standards. Validate availability through authorized distributors given potential lifecycle changes.

Selection Notes

Select this component when simultaneous monitoring of four separate power domains is necessary without requiring external comparators. Consider the SOT-23-6 footprint constraints and the specific threshold values provided in the datasheet. Evaluate the quiescent current consumption against battery life requirements. Ensure the open-drain output interface aligns with the downstream logic level requirements of your microprocessor or FPGA.

Part Context

This part belongs to the MAX6339 family of quad voltage supervisors designed for low-power applications. It serves as a dedicated power management integrated circuit (PMIC) support component. The device simplifies board design by integrating multiple supervisor functions into a single small outline transistor package. It is part of Maxim Integrated's broader portfolio of microprocessor supervisory circuits.

Replacement Considerations

Consult official cross-reference lists for direct pin-compatible alternatives. Verify that any substitute maintains the same quad-channel architecture and SOT-23-6 footprint. Ensure equivalent threshold voltage options and reset timeout characteristics are available. Confirm operational temperature ranges match your environmental specifications.