MAX6354UWUK-T

Overview

The MAX6354UWUK-T is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power supplies with precision thresholds of 3.08 V and 4.63 V, providing an active-low push-pull reset output referenced to the second supply rail (VCC2). The device features a manual reset input and a minimum reset delay time of 180 ms. Operating within a supply voltage range up to 5.5 V, it maintains high accuracy of 1.5% across an extended industrial temperature range from -40°C to +85°C. With a low operating supply current of 20 µA, this component is housed in a compact SOT-23-5 surface-mount package, designed for reliable system supervision in space-constrained applications.

Feature Summary

• Dual-channel voltage monitoring with factory-set precision thresholds
• Active-low push-pull reset output referenced to VCC2
• Debounced manual reset input compatible with TTL/CMOS logic
• Low power consumption with 20 µA operating supply current

Applications

• Monitoring multiple voltage rails in embedded systems
• Supervising power supplies in industrial control equipment
• Ensuring system reliability in portable electronic devices
• Voltage supervision in automotive electronics

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm that the specific suffix matches the required threshold voltages and package type. Check RoHS compliance status and ensure storage conditions adhere to moisture sensitivity levels. Validate that the supplier provides traceable documentation for quality assurance purposes.

Selection Notes

Select this part when dual-supervision functionality is required with a reset output referenced to a secondary voltage rail. Ensure the monitored voltages align with the available threshold options. Consider the SOT-23-5 package size for board space limitations. Verify that the 180 ms reset delay meets system timing requirements compared to other series variants.

Part Context

This component belongs to the MAX635x series of dual/triple-voltage supervisory circuits. It shares functional similarities with parts like the MAX6356 but differs in output referencing and specific threshold configurations. The series is designed to improve system reliability by replacing discrete components with integrated solutions offering precise monitoring capabilities.

Replacement Considerations

Cross-reference with MAX6354LTUK+T for similar dual-voltage supervision. Verify pin compatibility and threshold voltage alignment before substitution. Ensure the replacement part supports the same operating temperature range and package style.