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 and provides reset signals when voltages deviate from specified thresholds. The device operates within a supply voltage range of 1V to 5.5V and features an active-low, open-drain output. Key electrical parameters include a maximum operating temperature of +85°C, a minimum operating temperature of -40°C, and a typical quiescent current of 55µA. The reset delay time is 200ms, and the accuracy is specified at 5%. It is housed in a SOT-23-6 surface-mount package.

Feature Summary

• Monitors four independent voltage inputs simultaneously
• Provides active-low open-drain reset output
• Operates with low quiescent current for power efficiency
• Includes fixed threshold options for common voltage rails

Applications

• Multi-rail power system monitoring in embedded systems
• Voltage supervision for microprocessor and FPGA boards
• Industrial control unit power integrity verification
• Telecommunications equipment power rail validation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lot traceability upon receipt. Check for lead-free soldering requirements if applicable to your assembly process. Ensure storage conditions meet humidity sensitivity level specifications to prevent moisture damage prior to reflow soldering.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage levels is required in a compact footprint. Consider the 5% accuracy specification against your system's tolerance requirements. Evaluate the 200ms reset delay against your processor's startup timing constraints. Verify that the SOT-23-6 package fits your PCB layout constraints compared to larger packages like UMAX or TDFN.

Part Context

This part belongs to the MAX6339 series of quad voltage supervisors. It complements single-channel devices like the MAX6334 and dual-channel variants such as the MAX6391. The series offers various threshold combinations to cover standard logic and memory voltages without requiring external resistors for threshold setting.

Replacement Considerations

Direct pin-compatible substitutes within the same family include MAX6339CUT+T and MAX6339PUT+T, which share the SOT-23-6 package and quad-monitor functionality. Verify specific threshold voltages match your design requirements, as suffixes indicate different factory-set trip points.