MAX6352RVUK+T

Overview

The MAX6352RVUK+T is a dual-input microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.0V to 5.5V and features two independent reset thresholds, specifically set at 2.93V for the VCC3 input and 4.46V for the VCC5 input. The device provides an active-low open-drain reset output with a minimum power-on reset pulse width of 100ms. It includes a debounced manual-reset input and consumes only 20µA of supply current. Packaged in a compact 5-pin SOT-23 format, it supports industrial temperature ranges.

Feature Summary

• Dual-input monitoring capability for independent voltage rails
• Factory-set precision reset thresholds for specific supply voltages
• Debounced manual-reset input compatible with TTL/CMOS logic
• Low-power operation suitable for battery-supplied systems

Applications

• Portable and battery-powered equipment requiring multi-voltage supervision
• Computers and intelligent instruments needing reliable power sequencing
• Controllers in multivoltage systems ensuring stable operation during brownouts

Procurement Notes

Verify the suffix 'RV' confirms the specific threshold configuration of 2.93V and 4.46V against your schematic requirements. Confirm the package type matches the 5-pin SOT-23 footprint. Check RoHS compliance status if required by your manufacturing standards. Ensure the operating temperature range aligns with your environmental specifications. Cross-reference the manufacturer's latest datasheet revision for any pinout or electrical characteristic updates.

Selection Notes

Select this component when precise supervision of two distinct voltage levels is required without external resistors. The fixed thresholds eliminate calibration needs and reduce bill-of-materials complexity. Consider the low quiescent current for energy-constrained applications. Verify that the open-drain output interface is compatible with the downstream processor's reset input requirements. Evaluate the physical size constraints to ensure the SOT-23 package fits the design layout.

Part Context

This part belongs to the MAX635x family of microprocessor supervisors designed to enhance system reliability. These devices replace discrete components and separate ICs, offering improved accuracy and reduced board space. The family typically includes variants with different threshold combinations and package options, catering to diverse embedded system architectures.

Replacement Considerations

Direct substitutes include other MAX6352 variants with identical pinouts but different threshold settings, such as MAX6352MSUK+T or MAX6352UVUK+T, provided the voltage thresholds match the application needs. Generic equivalents may exist but require careful verification of reset timing and threshold accuracy.