MAX6420UK33+

Supervisors Overview

The MAX6420UK33+ is a low-power microprocessor supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors system voltages and asserts a reset signal when the supply voltage falls below its threshold or the manual reset input is asserted. The device features an active-low, push-pull reset output with a timeout period externally set by a capacitor. It operates within a supply voltage range of 1.6V to 5V and is available in a 5-pin SOT-23 package.

Supervisors Feature Summary

• Monitors system voltages from 1.6V to 5V
• Asserts reset signal on undervoltage or manual input assertion
• Features active-low, push-pull reset output
• Reset timeout delay is externally adjustable via a capacitor

Supervisors Applications

• Microprocessor power supply monitoring
• Battery-powered systems requiring voltage supervision
• Embedded controllers needing manual reset capability

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status for environmental regulations. Check current availability as supply may be limited. Ensure the specific suffix matches required pinout and electrical characteristics. Validate datasheet revisions against design requirements.

Supervisors Selection Notes

Select this component for applications requiring precise voltage supervision with adjustable reset timing. Consider the external capacitor requirement for timeout configuration. Evaluate power consumption constraints against the device's low-power specifications. Ensure the SOT-23-5 package fits the PCB layout. Verify compatibility with the system's operating voltage range.

Supervisors Part Context

This part belongs to the MAX6412–MAX6420 series of low-power microprocessor supervisors. These circuits are designed for reliable system reset generation in embedded environments. The series offers flexibility through adjustable timeout delays and multiple output configurations. Maxim Integrated specializes in such power management and monitoring solutions.

Supervisors Replacement Considerations

Check for direct replacements within the MAX64xx series with compatible thresholds. Verify pin-to-pin compatibility if substituting packages. Ensure equivalent electrical performance for reset accuracy and supply current.