MAX6354TYUK+

Overview

The MAX6354TYUK+ is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power supplies with preset thresholds of 3.08 V and 4.63 V, asserting active-low push-pull reset outputs when voltages drop below these levels. The device operates within a supply voltage range up to 5.5 V and features a manual reset input with debouncing. It offers high accuracy of 1.5% and consumes only 20 µA of supply current. The component functions reliably across an extended temperature range from -40°C to +85°C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Dual-channel voltage monitoring with factory-set precision thresholds for system reliability
• Active-low push-pull reset outputs referenced to specific supply rails
• Debounced manual reset input compatible with TTL/CMOS logic levels
• Ultra-low 20 µA supply current consumption for power-sensitive applications

Applications

• Multi-rail embedded systems requiring simultaneous power supervision
• Portable electronic devices needing low standby current management
• Industrial control units operating in extended temperature environments

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations may exist. Confirm availability status directly with authorized distributors, as supply constraints may apply. Ensure the SOT-23-5 package type matches your PCB footprint requirements. Cross-reference the specific threshold voltages (3.08 V, 4.63 V) with your design specifications before ordering.

Selection Notes

Select this component when precise monitoring of two distinct voltage rails is required without external resistors. The fixed thresholds eliminate calibration needs. Consider the SOT-23-5 package size for space-constrained designs. Verify that the 1.5% accuracy meets your system tolerance requirements. Ensure the active-low output polarity aligns with your microprocessor reset input logic.

Part Context

This part belongs to the MAX635x series of dual/triple-voltage supervisory circuits designed to improve system reliability. These devices replace discrete components or separate ICs by integrating multiple reset functions into a single chip. The series supports various threshold combinations and packages, offering flexibility for diverse multi-supply architectures while maintaining small form factors.

Replacement Considerations

Check the MAX6354LTUK+T for similar dual-voltage supervision capabilities. Verify compatibility regarding threshold voltages, package dimensions, and electrical characteristics before substitution. Ensure any alternative maintains the same active-low push-pull output structure and manual reset functionality.