MAX6359UVUT-T

Overview

The MAX6359UVUT-T is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in a compact SOT-23-6 surface-mount package. It features two active-low push-pull reset outputs referenced to VCC1 and VCC2, with factory-set thresholds of 4.63V and 2.88V respectively. The device includes a manual reset input, a watchdog timer with a 46.4s startup timeout, and operates within an extended temperature range of -40°C to +85°C while consuming only 20µA of supply current.

Feature Summary

• Dual voltage monitoring with independent threshold settings for system reliability
• Integrated watchdog timer with extended startup timeout period
• Debounced manual reset input compatible with TTL/CMOS logic levels

Applications

• Multi-rail embedded systems requiring simultaneous power supervision
• Industrial control units needing robust voltage monitoring
• Communication equipment ensuring stable operation across temperature extremes

Procurement Notes

Verify the specific suffix 'UVUT' against official Analog Devices documentation to confirm exact threshold voltages and package variations. Confirm RoHS compliance status and lead times directly with authorized distributors as availability may vary. Ensure the component matches the required operating temperature range for your specific application environment before finalizing procurement decisions.

Selection Notes

Select this component when precise monitoring of two distinct voltage rails is required without external resistors. Consider the 20µA quiescent current for battery-sensitive designs. Verify that the SOT-23-6 footprint fits your PCB layout constraints. Ensure the watchdog functionality meets your system's fault recovery requirements compared to simpler supervisors.

Part Context

Part of the MAX6351-MAX6360 family of multi-voltage supervisors designed to replace discrete components. This series improves system accuracy by providing factory-set thresholds. The MAX6359 specifically targets applications needing dual-channel supervision with integrated watchdog capabilities in a minimal footprint.

Replacement Considerations

Check MAX6359LTUT+T or MAX6359SVUT+T for alternative threshold options within the same package. Verify pin compatibility and electrical specifications before substituting. Consult official datasheets for any functional differences between suffix variants.