MAX6354TYUK+T

Overview

The MAX6354TYUK+T is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors two independent power supplies, asserting a reset signal if either voltage drops below its respective factory-set threshold. The device operates within an extended temperature range of -40°C to +125°C and features a minimum power-on reset pulse width of 100ms. It includes a debounced manual-reset input and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

• Dual-channel monitoring for simultaneous supervision of multiple power rails
• Factory-set precision thresholds eliminate the need for external resistors
• Integrated watchdog timer with defined start-up and normal timeout periods
• Debounced manual-reset input compatible with TTL/CMOS logic levels

Applications

• Multivoltage computer systems requiring simultaneous rail supervision
• Intelligent instruments and controllers with complex power architectures
• Portable and battery-powered equipment needing low standby current
• Industrial control units operating in extended temperature environments

Procurement Notes

Verify the specific suffix 'TY' against official datasheets to confirm exact threshold voltages, as these vary significantly across the MAX6354 family. Ensure the component matches the required supply voltage ranges and reset polarity for your design. Confirm RoHS compliance status and check for lead-free packaging specifications before finalizing procurement orders.

Selection Notes

Select this component when system reliability depends on monitoring two distinct power supplies simultaneously. It is suitable for designs requiring precise, factory-calibrated thresholds without external resistor networks. Consider the low supply current and small package size for space-constrained or battery-operated applications where minimal quiescent power consumption is critical.

Part Context

This part belongs to the MAX6351–MAX6360 series of microprocessor supervisors designed to improve system accuracy compared to discrete solutions. These devices integrate multiple reset functions into small packages, reducing board space and component count. The series supports various voltage thresholds and package options to accommodate diverse industrial and commercial power management requirements.

Replacement Considerations

Direct replacements include other members of the MAX635x series such as MAX6354LTUK+T or MAX6354MTUK+T, provided the threshold voltages match the application requirements. Verify pin compatibility and electrical characteristics before substitution.