MAX6353SZUK-T

Overview

The MAX6353SZUK-T is a low-power voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 1.2V to 5.5V and features a threshold voltage of 4.38V with an accuracy of 1.5%. The device provides a manual reset function and includes a watchdog timer, delivering an active-low push-pull output. It has a reset delay time of 180ms and consumes only 20uA of operating current. Designed for surface-mount installation, it is housed in an SOT-23-5 package and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates a manual reset button interface allowing user-initiated system recovery.
• Includes a built-in watchdog timer to detect software malfunctions and ensure system reliability.
• Provides precise voltage monitoring with high accuracy for critical power rails.

Applications

• Portable consumer electronics requiring low standby current
• Battery-powered embedded systems needing reliable brown-out protection
• Industrial control units utilizing manual reset capabilities

Procurement Notes

Verify the specific suffix 'S' indicates the 4.38V threshold variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Check for obsolescence notices as this component may be subject to lifecycle changes. Ensure the SOT-23-5 footprint matches your PCB design constraints before finalizing procurement.

Selection Notes

Select this part when a single-channel supervisor with manual reset and watchdog functionality is required. Compare against other MAX6353 variants if different threshold voltages are needed. Consider the 20uA quiescent current for battery-sensitive designs. Verify that the active-low push-pull output drives the target microcontroller reset pin correctly.

Part Context

This component belongs to the MAX6353 series of ultra-low-power voltage supervisors. The series offers various threshold options and package configurations to suit diverse application needs. It is designed for systems requiring robust power management in compact form factors.

Replacement Considerations

Compatible substitutes include other MAX6353 variants with adjusted threshold voltages or the MAX6355 series for multi-channel requirements. Verify pin compatibility and electrical specifications before substitution.