MAX16021LTEW+

Supervisors Overview

The MAX16021LTEW+ is a low-power voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.53 V to 5.5 V and features a threshold voltage of 3.1 V. The device provides manual reset capability, a watchdog timer, and battery backup switching. It includes power-fail detection with an overvoltage threshold of 3.19 V and a reset delay time of 215 ms. Designed for surface-mount installation in a TQFN-EP-16 package, it supports active high, active low, and push-pull outputs while consuming only 1.2 uA of operating current.

Supervisors Feature Summary

• Integrates a watchdog timer and battery backup switch for comprehensive system protection
• Provides selectable output configurations including active high, active low, and push-pull modes
• Features manual reset input capability alongside automatic power-on reset functions

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems utilizing backup switching capabilities
• Embedded controllers needing watchdog timer functionality

Supervisors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or official ADI channels. Confirm RoHS compliance status and check for obsolescence notices as the product may be discontinued. Ensure the TQFN-16 package matches your PCB footprint requirements before ordering.

Supervisors Selection Notes

Select this supervisor when precise voltage monitoring is required for single-input applications. Consider the specific threshold voltage and reset delay times against your system's timing constraints. Evaluate the need for integrated watchdog and backup features to simplify the overall design architecture.

Supervisors Part Context

This component belongs to the MAX16021L series of supervisory circuits from Maxim Integrated, now part of Analog Devices. These devices are designed for power management tasks, offering reliable voltage monitoring and system reset generation in compact packages suitable for space-constrained electronics.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for verified cross-reference options.