MAX6443US31L+T

Supervisors Overview

The MAX6443US31L+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.0V to 5.5V and features a fixed reset threshold voltage of 3.075V. The device provides an active-low, open-drain reset output with a typical timeout delay of 200ms. It supports manual reset functionality via an external push-button switch. The component is housed in an 8-lead SOIC package and is rated for operation across an extended temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Integrates a microprocessor supervisor with a manual reset input for system control
• Provides a fixed threshold voltage detection for reliable power monitoring
• Features an active-low open-drain reset output compatible with various logic families

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered systems requiring low-voltage detection
• Industrial control systems operating in extended temperature environments

Supervisors Procurement Notes

Verify the specific suffix 'L' and package type 'US' against the official datasheet to ensure compatibility with your PCB footprint and voltage requirements. Confirm availability status as older Maxim Integrated products may have limited stock or obsolescence notices. Cross-reference the manufacturer's part number guide to validate that the '+T' indicates tape-and-reel packaging if required for automated assembly processes.

Supervisors Selection Notes

Select this component when a fixed 3.075V threshold is appropriate for the target rail voltage. Ensure the open-drain output configuration aligns with the downstream logic interface requirements. Consider the manual reset feature if user-initiated system recovery is necessary. Verify that the SOIC-8 package dimensions fit the available board space and that the extended temperature rating meets the environmental constraints of the final application.

Supervisors Part Context

This part belongs to the MAX644x family of ultra-low-power voltage supervisors designed for embedded systems. These devices are engineered to monitor power rails and generate reset signals for microprocessors and memory devices. The series emphasizes low quiescent current consumption to extend battery life in portable applications while maintaining high accuracy for critical system protection.

Supervisors Replacement Considerations

Check the official MAX6443 datasheet for direct pin-to-pin replacements within the same family, such as other threshold variants like MAX6443US29L+T or MAX6443US33L+T, depending on the required trip point. Verify package compatibility before substituting with newer generations from the MAX61xx or MAX16xxx series.