MAX6423US22+T

Supervisors Overview

The MAX6423US22+T is a low-power microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors system voltages from 1.6V to 5V and asserts a reset signal when the supply voltage falls below its threshold. The device features an active-low, open-drain reset output with a capacitor-adjustable timeout delay. It operates within a temperature range of -40°C to +125°C, draws a typical quiescent current of 1.6µA, and is housed in a 4-pin SOT-143 package.

Supervisors Feature Summary

• Capacitor-adjustable reset timeout period for flexible timing configuration
• Low quiescent current consumption suitable for battery-powered applications
• Active-low, open-drain reset output compatible with various logic families

Supervisors Applications

• Portable consumer electronics requiring extended battery life
• Embedded systems needing reliable power-on reset sequencing
• Industrial control units operating in wide temperature environments

Supervisors Procurement Notes

Verify the specific suffix 'S22' indicates the 2.188V threshold variant. Confirm RoHS compliance status through official documentation. Ensure the SOT-143 package matches your PCB footprint requirements. Check for lead-free manufacturing specifications if required by your assembly process.

Supervisors Selection Notes

Select this component when a fixed threshold is insufficient and external capacitor adjustment is preferred. Compare against MAX6422 variants if an active-high output is needed instead. Consider the MAX6421 or MAX6424 if push-pull outputs are required rather than open-drain configurations.

Supervisors Part Context

This part belongs to the MAX642x series of low-power supervisors. These devices share common architectural features including capacitor-adjustable timeouts and ultra-low standby currents. The series supports multiple voltage thresholds and package options to accommodate diverse design constraints across portable and industrial markets.

Supervisors Replacement Considerations

MAX6423US22+ is the non-tape reel equivalent. MAX6423XS26+T offers a similar function but with a different threshold voltage and SC-70 package.