MAX6721UTZWD3+T

Supervisors Overview

The MAX6721UTZWD3+T is a dual-channel ultra-low-power voltage supervisor manufactured by Analog Devices Inc. (formerly Maxim Integrated). It monitors two independent supply voltages with threshold ranges of 1.8 V to 5 V and 900 mV to 3.3 V. The device features an active low, open-drain output and includes manual reset functionality alongside a watchdog timer. It operates within a supply voltage range up to 5.5 V and supports a reset delay time of 280 ms. The component is housed in a compact SOT-23-6 surface-mount package and functions reliably across an industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Dual-channel voltage supervision for monitoring multiple power rails simultaneously
• Integrated watchdog timer for system fault detection and recovery
• Manual reset capability allowing user-initiated system restarts
• Ultra-low quiescent current consumption for battery-powered applications

Supervisors Applications

• Portable electronic devices requiring extended battery life
• Embedded systems needing reliable power-on reset sequences
• Industrial control units operating in extreme temperature environments
• Communication equipment utilizing watchdog protection mechanisms

Supervisors Procurement Notes

Verify the exact suffix configuration against official Analog Devices documentation to ensure correct threshold and feature selection. Confirm availability status as distribution channels may list discontinued or limited-stock items. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Ensure the selected variant matches the specific voltage thresholds required by the target circuit design before finalizing procurement orders.

Supervisors Selection Notes

Select this component when dual independent voltage monitoring is required within a minimal footprint. The SOT-23-6 package suits space-constrained designs. Verify that the available threshold ranges cover the specific supply rails being monitored. Consider the 280 ms reset delay duration to ensure compatibility with the microcontroller startup requirements. Evaluate the operating temperature range to confirm suitability for the intended environmental conditions.

Supervisors Part Context

This supervisor belongs to the MAX6721A series of ultra-low-power voltage supervisors. The family offers various channel configurations and threshold options. Analog Devices acquired Maxim Integrated, consolidating these product lines under the ADI portfolio. The MAX6721UTZWD3+T represents a specific configuration within this broader supervisory circuit ecosystem designed for robust power management.

Supervisors Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitute part numbers. Ensure any replacement maintains identical pinout compatibility and electrical specifications. Verify that alternative components support the same dual-channel supervision and watchdog features required by the existing design architecture.