MAX6359SVUT+T

Overview

The MAX6359SVUT+T is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors two input supply voltages and asserts active-low reset outputs when thresholds are exceeded. The device features a debounced manual reset input and a watchdog timer with specified timeout periods. It operates within an extended temperature range of -40°C to +85°C and consumes low supply current. The component is housed in a compact SOT-23-6 surface-mount package, ensuring reliable system supervision for multiple power rails.

Feature Summary

• Monitors two independent voltage inputs with precision factory-set thresholds
• Includes a debounced manual reset input compatible with TTL/CMOS logic levels
• Integrates a watchdog timer with defined startup and operating timeout periods

Applications

• Multi-rail power supply monitoring in embedded systems
• Microprocessor system supervision requiring dual voltage oversight
• Industrial control units needing watchdog timer functionality

Procurement Notes

Verify the specific suffix SVUT against official datasheets to confirm threshold voltages and output configurations. Confirm RoHS compliance status and availability through authorized distributors. Ensure the ordering part number matches the required pinout and electrical specifications for your design.

Selection Notes

Select this component when dual voltage supervision is required alongside manual reset and watchdog capabilities. Compare threshold options against other MAX635x variants to match specific rail voltages. Consider the SOT-23-6 package size for space-constrained PCB layouts requiring surface-mount integration.

Part Context

This part belongs to the MAX6351–MAX6360 series of microprocessor supervisors designed to improve system reliability. These devices replace discrete components by integrating multiple reset functions into a single IC. The series offers various threshold combinations and package options to suit different multi-supply applications.

FAQ

What is the function of the watchdog timer in the MAX6359?

The watchdog timer provides a 46.4s startup timeout period and a 2.9s operating timeout period to detect software hangs or system failures.

How does the manual reset input operate?

The manual reset input is debounced and TTL/CMOS compatible, allowing users to manually assert the reset output when needed.