MAX6339BUT+T

Overview

The MAX6339BUT+T is a precision quad voltage monitor featuring microprocessor supervisory reset timing, designed to monitor up to four system supply voltages. It operates within a supply voltage range of 1V to 5.5V and delivers an active-low open-drain reset output with a typical delay of 200ms. The device provides 5% accuracy for threshold detection and functions across an industrial temperature range of -40°C to +85°C. Packaged in a compact SOT-23-6 surface-mount format, it supports low-power applications with a quiescent current of 55µA.

Feature Summary

• Monitors up to four independent system supply voltages simultaneously
• Provides precise supervisory reset timing for microprocessor systems
• Features active-low open-drain output compatible with various logic families

Applications

• Multi-rail embedded system power monitoring
• Microprocessor supervisory reset generation
• Portable equipment voltage tracking

Procurement Notes

Verify the specific suffix 'BUT' against the official Analog Devices datasheet to confirm the exact threshold voltage configuration, as this variant determines the fixed monitoring levels. Confirm RoHS compliance status and check for obsolete lifecycle status before finalizing procurement plans due to potential availability constraints.

Selection Notes

Select this component when simultaneous monitoring of four distinct voltage rails is required without external comparator circuitry. Ensure the fixed threshold voltages associated with the 'BUT' suffix align with the target system supplies. Consider the SOT-23-6 package size for space-constrained designs requiring quad supervision.

Part Context

This part belongs to the MAX6339P series of quad voltage supervisors from Maxim Integrated. It serves as a dedicated power management support IC, replacing discrete resistor networks and comparators typically used for multi-voltage monitoring in complex digital systems.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitutes. Generic equivalents may lack the specific threshold tolerances or reset timing characteristics defined by the original datasheet.