MAX6328UR28+T

Supervisors Overview

The MAX6328UR28+T is a supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring single voltage inputs. It operates within a supply voltage range up to 5.5 V and features an active low open-drain output. The device provides a reset timeout of 185 ms with a threshold accuracy of 1.5%. It functions in temperatures from -40°C to +85°C, consuming only 500 nA of quiescent current. Packaged in SOT-23-3, it supports surface mount installation.

Supervisors Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Active low open-drain reset output for flexible interfacing
• Fixed threshold voltage detection for precise supervision

Supervisors Applications

• Portable electronic devices requiring extended battery life
• Embedded systems needing reliable power-on reset signals
• Microcontroller-based circuits requiring voltage supervision

Supervisors Procurement Notes

Verify the specific suffix UR28 indicates the 2.8V threshold variant when sourcing. Confirm RoHS3 compliance status as per the latest manufacturer documentation. Ensure the SOT-23-3 package matches your PCB footprint requirements. Check for any lead-free plating specifications if required by your assembly process standards.

Supervisors Selection Notes

Select this component when a fixed 2.8V threshold is required for system supervision. Consider the 185ms timeout duration against your microcontroller startup time requirements. Evaluate the 500nA current draw against total system power budgets. Verify that the open-drain output configuration aligns with your logic level interface needs.

Supervisors Part Context

This part belongs to the MAX6328U series of ultra-low-power reset circuits. It shares the same functional architecture as other variants in the family but differs in its fixed voltage threshold setting. The series is characterized by minimal quiescent current and small package options, targeting space-constrained portable applications.

Supervisors Replacement Considerations

Cross-reference with MAX6328UR22+T or MAX6328UR30+T if different threshold voltages are acceptable. Verify pinout compatibility before substitution. Ensure the replacement part maintains the same open-drain output type and timeout characteristics.