MAX6351RVUT+T

Overview

The MAX6351RVUT+T is a dual microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It monitors two independent voltage rails with preset thresholds of 1.58V and 2.93V. The device features active-low push-pull reset outputs referenced to their respective supply voltages (VCC1 and VCC2). It includes a debounced manual reset input and ensures output validity as long as either supply remains above +1.0V. The component operates within an extended temperature range of -40°C to +85°C and is housed in a surface-mount SOT-23-6 package.

Feature Summary

• Dual-channel monitoring with independent reset outputs referenced to specific supply rails
• Active-low push-pull output configuration for robust drive capability
• Debounced manual reset input compatible with TTL/CMOS logic levels
• Extended industrial operating temperature range for reliable performance

Applications

• Multi-rail power supply supervision in embedded systems
• Voltage monitoring for mixed-voltage digital circuits
• System reliability enhancement in industrial control units
• Power management in portable electronic devices

Procurement Notes

Verify the complete part number including suffixes such as +T for tape-and-reel packaging when sourcing. Confirm that the manufacturer designation matches Analog Devices Inc. or Maxim Integrated to ensure authenticity. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement specifications.

Selection Notes

Select this component when precise monitoring of two distinct voltage levels is required with independent reset signaling. The push-pull output type offers better noise immunity compared to open-drain alternatives. Ensure the monitored voltages align with the available threshold options, specifically 1.58V and 2.93V for this variant. Consider the SOT-23-6 package constraints for PCB layout space.

Part Context

This device belongs to the MAX6351–MAX6360 series of microprocessor supervisors designed to improve system accuracy over discrete solutions. Unlike single-supervisor ICs, this family allows simultaneous monitoring of multiple rails. The MAX6351 specifically provides two reset outputs, distinguishing it from single-output variants in the same series.

Replacement Considerations

Compatible substitutes include other MAX6351 variants with different threshold voltages or packages, such as MAX6351UVUT+T. Cross-reference threshold values carefully, as they are factory-set and unique to each suffix code. Ensure replacement parts maintain the same SOT-23-6 footprint and electrical interface compatibility.