MAX6339HUT

Overview

The MAX6339HUT is a quad voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors four independent power supply rails simultaneously within a compact SOT-23-6 surface-mount package. The device provides active-low reset signals with open-drain or open-collector outputs to ensure system stability during power fluctuations. Key electrical parameters include a maximum supply voltage of 5.5 V and an operating temperature range from -40°C to +85°C. Factory-trimmed threshold voltages are specified as 1.58 V, 2.78 V, 4.63 V, and an adjustable setting. The minimum reset timeout period is guaranteed at 140 ms, ensuring adequate delay for power rail stabilization before asserting the reset state.

Feature Summary

• Simultaneous monitoring of four distinct voltage channels
• Active-low reset output with configurable open-drain or open-collector topology
• Factory-trimmed threshold voltages including one adjustable channel
• Compact six-pin SOT-23 surface-mount packaging

Applications

• Multi-rail embedded system power management
• Microprocessor board supervision
• Industrial control unit power integrity monitoring
• Communication equipment voltage tracking

Procurement Notes

Verify the specific suffix configuration against the official datasheet to confirm threshold voltage selections and output type compatibility. Ensure the ordering part number matches the required pinout and electrical characteristics for the target application design.

Selection Notes

Select this component when simultaneous monitoring of multiple voltage rails is required in space-constrained designs. The adjustable threshold option allows flexibility for non-standard voltage levels. Confirm that the open-drain/open-collector output interface aligns with the downstream logic requirements.

Part Context

This component belongs to the MAX6339P series of microprocessor supervisory circuits. The family is designed for low-power applications requiring reliable power-fail detection. The HUT suffix indicates specific factory-set thresholds and the SOT-23-6 package variant within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.