MAX6339FUT

Overview

The MAX6339FUT is a quad voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors four distinct power rails simultaneously within a compact SOT-23-6 surface-mount package. The device features an active low, open-drain output and supports a supply voltage range up to 5.5 V. Key electrical parameters include threshold voltages of 2.19 V, 2.78 V, 4.63 V, and an adjustable channel. It operates reliably across a temperature range of -40°C to +85°C with a minimum reset timeout of 140 ms.

Feature Summary

• Simultaneous monitoring of four independent voltage channels for comprehensive power system supervision
• Active low open-drain output configuration compatible with various logic families
• Compact SOT-23-6 surface-mount packaging designed for space-constrained applications

Applications

• Multi-rail embedded systems requiring simultaneous voltage supervision
• Portable electronic devices with multiple power domains
• Industrial control units monitoring critical supply lines

Procurement Notes

Verify the specific suffix (e.g., +T) for tape-and-reel packaging requirements. Confirm RoHS compliance status as indicated in official datasheets. Ensure the selected variant matches the required threshold voltage specifications for your design. Check availability through authorized distributors as lead times may vary.

Selection Notes

Select this component when four-channel supervision is necessary in a small footprint. The adjustable threshold allows customization for non-standard rail voltages. Ensure the application environment stays within the specified -40°C to +85°C operating range. Verify that the open-drain output interface aligns with the downstream logic requirements.

Part Context

This part belongs to the MAX6339P series of microprocessor supervisory circuits from Maxim Integrated. These devices are designed to monitor power-supply voltages in battery-powered and AC-powered systems. The series offers various threshold combinations to suit different multi-voltage architectures.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX6339 family with different threshold configurations. Verify if other quad supervisors from Analog Devices offer similar performance metrics. Ensure any substitute maintains the same SOT-23-6 package and electrical characteristics.