MAX6339PUT-T

Overview

The MAX6339PUT+T is a quad voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors four independent voltage rails and provides reset signals when thresholds are exceeded. The device operates within a supply voltage range of up to 5.5 V and features an active low, open-drain output. Key electrical parameters include a reset delay time of 200 ms and a typical operating supply current of 55 uA. Accuracy is specified at 5%. The component is housed in a SOT-23-6 package and supports surface mount installation.

Feature Summary

• Monitors four independent voltage inputs simultaneously for system reliability
• Provides active low reset signal with open-drain output configuration
• Includes fixed threshold options alongside adjustable voltage monitoring capability
• Operates with low power consumption suitable for battery-backed systems

Applications

• Multi-rail power supply supervision in embedded systems
• Microprocessor reset generation in industrial control units
• Voltage monitoring for portable electronic devices
• System integrity verification in communication equipment

Procurement Notes

Verify the exact suffix designation (+T vs -T) against the manufacturer's official datasheet to ensure correct packaging and availability status. Confirm RoHS compliance requirements and check for obsolescence notices or lifecycle changes directly from Analog Devices documentation before finalizing procurement plans.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage levels is required within a compact footprint. Ensure the specific threshold voltages match the monitored rails, considering the available fixed options or adjustability. Verify that the 200 ms reset delay aligns with system startup timing requirements and that the open-drain output interface is compatible with the target logic family.

Part Context

The MAX6339 series belongs to Maxim Integrated's portfolio of microprocessor supervisory circuits designed for high reliability. These components are engineered to detect under-voltage and over-voltage conditions across multiple power domains. The PUT variant specifically addresses applications needing quad-channel monitoring in small surface-mount packages, supporting complex multi-voltage architectures common in modern electronics.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitute part numbers. Ensure any replacement maintains identical pinout compatibility, threshold specifications, and package dimensions to avoid board redesign.