MAX6338CUB+

Overview

The MAX6338CUB+ is a quad voltage monitor from Analog Devices, housed in a 10-pin uMAX package. It monitors four input voltages with thresholds of 1.8 V, 3.3 V, 5 V, and an adjustable setting. The device features active low, open-drain outputs and operates within a supply voltage range of 2.5 V to 5.5 V. It maintains an accuracy of 2.5% across a temperature range of -40°C to +85°C while consuming 35 µA of quiescent current.

Feature Summary

• Provides simultaneous monitoring of four independent voltage rails
• Features software-selectable threshold configurations for flexible system integration
• Delivers active low open-drain reset signals for reliable fault indication

Applications

• Portable electronic devices requiring multi-rail power supervision
• Battery-powered systems needing efficient voltage monitoring
• Industrial control units utilizing multiple logic voltage levels

Procurement Notes

Verify the specific suffix against official datasheets to confirm threshold values and package type. Confirm RoHS compliance status and manufacturing origin. Check for obsolescence notices or lifecycle changes directly from Analog Devices documentation before finalizing procurement decisions.

Selection Notes

Select this component when four distinct voltage rails require supervision within a compact footprint. Ensure the required threshold voltages align with the available fixed and adjustable options. Verify that the open-drain output configuration matches the downstream logic requirements of the target application circuit.

Part Context

This part belongs to the MAX6338 series of supervisory circuits designed for portable applications. It integrates multiple voltage monitors into a single small outline package, reducing board space compared to discrete solutions. The series supports various threshold combinations to accommodate different system architectures.

Replacement Considerations

Direct substitutes include MAX6338BUB+ and MAX6338OUB+. Verify that alternative part numbers match the exact threshold specifications and package dimensions required for the existing design.