MAX6359SVUT

Overview

The MAX6359SVUT+T is a dual-voltage microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2V to 5.5V and features two monitored inputs with threshold voltages of 2.19V and 2.93V. The device provides an active-low, push-pull reset output referenced to VCC1, with a reset delay time of 180ms. It includes a manual reset input and a watchdog timer with a 46.4s startup timeout. The component is housed in a SOT-23-6 package and functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Dual-voltage monitoring with factory-set thresholds for precise power supervision
• Integrated watchdog timer with extended startup timeout period
• Debounced manual reset input compatible with TTL/CMOS logic levels

Applications

• Microprocessor system power supervision
• Multi-rail voltage monitoring in embedded systems
• Watchdog timer implementation for system reliability

Procurement Notes

Verify the complete part number including suffixes such as +T or +T&R when ordering, as these indicate specific packaging options like reel or cut tape. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure compatibility with existing PCB footprints for the SOT-23-6 package. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when dual independent voltage rails require simultaneous supervision with a single IC. The fixed thresholds of 2.19V and 2.93V suit standard low-voltage logic supplies. Consider the 180ms reset delay for application timing requirements. Verify that the push-pull output drive capability meets downstream load needs without external pull-ups.

Part Context

This device belongs to the MAX6351–MAX6360 family of microprocessor supervisory circuits designed to improve system reliability. Unlike discrete solutions, these integrated monitors offer precision factory-set thresholds and compact SOT-23 packaging. The series supports various voltage combinations and includes features like watchdog timers and manual resets to ensure robust operation in critical electronic applications.

Replacement Considerations

Check for MAX6359 variants with different threshold voltages if the 2.19V/2.93V settings do not match design requirements. Other family members like MAX6358 or MAX6360 offer similar functionality but may differ in output configuration or additional monitoring channels.