MAX6338LUB+

Overview

The MAX6338LUB+ is a quad voltage monitor manufactured by Analog Devices Inc./Maxim Integrated, designed for surface-mount installation in a 10-pin uMAX package. It monitors four distinct supply voltages without requiring external components. The device features active-low, open-drain outputs and operates within a supply voltage range of +2.5V to +5.5V. It supports factory-trimmed thresholds including +5.0V, +3.3V, +3.0V, +2.5V, +1.8V, -5.0V, or user-adjustable settings. The unit consumes low supply current and guarantees operation from -40°C to +85°C.

Feature Summary

• Monitors up to four independent power supplies simultaneously
• Offers factory-programmed or user-adjustable threshold options
• Provides four independent active-low open-drain reset outputs
• Requires no external components for basic supervisory function

Applications

• Telecommunications systems
• High-end printers
• Desktop and notebook computers
• Data storage equipment
• Networking equipment

Procurement Notes

Verify the specific suffix code against the official datasheet to confirm the exact threshold configuration, as the MAX6338 series utilizes various suffixes to denote different factory-trimmed voltage levels. Confirm RoHS compliance status and lead times with authorized distributors, as availability may vary. Ensure the selected variant matches the required input voltage monitoring specifications for the target application design.

Selection Notes

Select this component when simultaneous monitoring of multiple rails is required in space-constrained designs. The uMAX package offers a compact footprint suitable for portable electronics. Consider the available threshold options, including adjustable inputs for general-purpose comparator use, to determine if this specific part number meets the precise voltage supervision requirements without additional circuitry.

Part Context

The MAX6338 belongs to Maxim’s microprocessor supervisory circuit family, focusing on multi-voltage monitoring solutions. This series eliminates the need for external resistors or capacitors typically required in discrete monitoring designs. The MAX6338LUB+ specifically represents one of the many threshold configurations available within this quad-monitor lineup, catering to diverse system power architectures.

Replacement Considerations

Direct substitutes include other MAX6338 variants with different suffix codes (e.g., MAX6338DUB+, MAX6338JUB+) that offer different factory-set threshold voltages but share the same package and functional architecture. Cross-reference the specific monitored voltage requirements before substituting.