MAX6339PUT

Overview

The MAX6339PUT is a quad voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors four independent power-supply voltages simultaneously within an SOT-23-6 package. The device supports input voltages up to 5.5V and features active-low, open-drain reset outputs with a standard 200ms timeout delay. Thresholds include fixed options such as 1.26V, 3.15V, 4.75V, and adjustable settings. Operating current is typically 55µA, with accuracy specified at 5%. It functions across a temperature range of -40°C to +85°C.

Feature Summary

• Simultaneous monitoring of four distinct power supply rails
• Active-low open-drain reset output configuration
• Low-power operation suitable for battery-backed systems
• Factory-set or adjustable threshold voltage selection

Applications

• Portable electronic devices requiring multi-voltage supervision
• Battery-powered equipment with multiple logic levels
• Embedded systems needing simultaneous power integrity checks
• Consumer electronics utilizing mixed voltage domains

Procurement Notes

Verify the specific suffix designation to confirm exact threshold voltages and package type. Ensure the component matches the required operating temperature range and supply voltage limits for the target application. Confirm RoHS compliance status if environmental regulations apply. Check availability status as distribution may vary by region.

Selection Notes

Select this component when simultaneous monitoring of four separate voltage rails is required in a compact surface-mount package. Consider the 55µA supply current for low-power applications. Verify that the open-drain output interface is compatible with the downstream logic inputs. Ensure the available threshold options cover all monitored supply voltages.

Part Context

This part belongs to the MAX6339P series of microprocessor supervisory circuits. It provides comprehensive power management support by tracking multiple voltage lines. The series is designed for applications requiring reliable reset generation under varying power conditions. It complements other Maxim Integrated power management solutions.

Replacement Considerations

Consult official documentation for direct pin-compatible substitutes within the MAX6339 family. Verify threshold voltage compatibility before substitution. Cross-reference package dimensions and electrical characteristics to ensure functional equivalence.