MAX6351TZUT-T

Overview

The MAX6351TZUT-T is a dual microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within an extended temperature range of -40°C to +85°C and utilizes a compact SOT-23-6 surface-mount package. The device monitors two independent power-supply inputs, VCC1 and VCC2, providing dedicated active-low push-pull reset outputs for each channel. It features a debounced manual reset input compatible with TTL/CMOS logic levels. The circuit draws a typical supply current of 20µA and ensures system reliability through precision factory-set thresholds.

Feature Summary

• Monitors two independent voltage rails with dedicated reset outputs
• Includes a debounced manual reset input for system control
• Operates with low quiescent current consumption
• Provides valid reset signals as long as inputs exceed minimum operating voltage

Applications

• Embedded systems requiring dual power supply monitoring
• Portable electronic devices with battery backup circuits
• Industrial control units needing reliable power supervision
• Communication equipment utilizing multiple voltage domains

Procurement Notes

Verify the specific suffix configuration against official documentation, as variations exist within the MAX6351 family. Confirm availability status with authorized distributors, as certain variants may be discontinued or subject to allocation. Ensure the selected part matches the required threshold voltages and package type for your design. Cross-reference the manufacturer's latest lifecycle notices to avoid obsolescence risks during production.

Selection Notes

Select this component when dual-channel voltage supervision is required in space-constrained designs. The SOT-23-6 package offers a small footprint suitable for portable applications. Consider the fixed threshold options provided in the datasheet to ensure compatibility with target supply rails. Evaluate the manual reset functionality if external user intervention or specific startup sequencing is necessary for the application.

Part Context

This component belongs to the MAX6351–MAX6360 series of microprocessor supervisors designed to improve system reliability. These devices replace discrete components by integrating multiple monitoring functions into a single IC. The series supports various voltage thresholds and package configurations, catering to diverse industrial and commercial applications requiring precise power management and fault detection capabilities.

Replacement Considerations

Check for direct pin-compatible alternatives within the same MAX635x family that offer different threshold combinations. Verify if newer generations from Analog Devices provide enhanced features or improved availability. Ensure any substitute maintains the same output drive capability and manual reset interface requirements.