MAX6338GUB+

Overview

The MAX6338GUB+ is a quad voltage monitor manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a 10-pin uMAX package. It monitors four distinct power supply rails without requiring external components. The device features active low open-drain outputs and supports threshold voltages of 1.8 V, 3 V, 5 V, and adjustable settings. It operates within a supply voltage range up to 5.5 V and functions across an industrial temperature range of -40°C to +85°C with a typical quiescent current of 35 µA.

Feature Summary

• Monitors up to four independent power supplies simultaneously
• Provides active low open-drain reset outputs for system control
• Includes factory-trimmed thresholds for standard voltages plus adjustable options
• Operates with minimal external component requirements

Applications

• Portable equipment power management
• Battery-powered systems
• Consumer electronics
• Industrial instrumentation

Procurement Notes

Verify the specific suffix 'G' against the official datasheet to confirm the exact threshold configuration, as this variant determines the fixed monitoring levels. Confirm RoHS compliance status through the manufacturer's documentation. Check for obsolescence notices or lifecycle changes directly from Analog Devices, as availability may vary significantly across regions.

Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails is required in a compact footprint. Ensure the fixed threshold values align with the target supply voltages or utilize the adjustable input if custom levels are needed. Verify that the open-drain output capability matches the downstream logic interface requirements.

Part Context

This part belongs to the MAX6338 family of quad voltage monitors designed for space-constrained applications. It integrates high-impedance comparators to detect out-of-spec conditions. The uMAX package provides a small surface-mount solution suitable for dense PCB layouts while maintaining reliable performance in industrial environments.

Replacement Considerations

Direct substitutes include other MAX6338 variants with different suffixes (e.g., JUB, OUB) which offer alternative fixed threshold combinations. Cross-reference the specific threshold requirements before substituting to ensure compatibility with the monitored voltage levels.