MAX6338GUB+T

Overview

The MAX6338GUB+T is a quad voltage monitor manufactured by Analog Devices Inc. under the Maxim Integrated brand, designed for supervisory circuit applications. It operates within a supply voltage range of up to 5.5V and features four distinct monitoring inputs with active low open-drain outputs. The device utilizes a UMAX-10 surface-mount package and functions reliably across an industrial temperature range from -40°C to +85°C. Key electrical parameters include a quiescent current of 35µA, threshold voltages of 1.8V, 3V, 5V, and an adjustable option, and overvoltage thresholds of 4.5V, 2.7V, 1.62V, and adjustable levels. It provides a reset timeout of less than 1ms without manual reset or watchdog timer capabilities.

Feature Summary

• Monitors up to four independent power supplies simultaneously without requiring external components
• Offers factory-trimmed threshold options including specific fixed voltages and a high-input impedance adjustable comparator
• Provides active low open-drain output signals for direct interface with system logic

Applications

• Portable equipment requiring multi-supply supervision
• Battery-powered systems needing efficient power management
• Industrial control units operating in harsh environments

Procurement Notes

Verify component authenticity through authorized distributors as the part may be discontinued or have limited availability. Confirm RoHS compliance status and check for lead-free specifications before integration. Ensure the UMAX-10 package dimensions match your PCB footprint requirements. Validate that the specific threshold configuration matches your design needs, as variants exist within the series.

Selection Notes

Select this component when simultaneous monitoring of multiple rails is required in a compact form factor. Consider the available threshold options to ensure compatibility with your specific voltage levels. Evaluate the low quiescent current for battery-sensitive designs. Verify that the absence of a manual reset input aligns with your system's recovery strategy.

Part Context

This component belongs to the MAX6338 series of quad voltage monitors, which are part of Analog Devices' broader portfolio of power management integrated circuits. The series is designed to provide reliable supervision for complex electronic systems. The G suffix typically denotes specific threshold configurations within the family, distinguishing it from other variants like C, B, or P models.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Analog Devices resources for cross-reference information.