MAX6328XR28+T

Overview

The MAX6328XR28+T is a supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring single voltage rails. It operates within a supply voltage range of up to 5.5V and features an active-low open-drain output. The device provides a reset delay time of 185ms and maintains a threshold accuracy of 1.5%. It functions reliably across a temperature range of -40°C to +85°C with a typical quiescent current of 500nA.

Feature Summary

• Provides simple reset or power-on-reset functionality for monitored voltage rails
• Features an active-low open-drain output configuration
• Operates with ultra-low quiescent current consumption

Applications

• Embedded system power supervision
• Microcontroller reset circuitry
• Portable electronic device power management

Procurement Notes

Verify the exact suffix 'R28' corresponds to the 2.8V threshold specification in official datasheets. Confirm package type matches SOT-23-3 requirements. Check RoHS compliance status against current regulatory standards. Ensure compatibility with existing PCB footprint and soldering profiles during integration.

Selection Notes

Select this component when a precise 2.8V threshold is required for system supervision. Consider the 185ms reset delay for application timing constraints. Evaluate the 500nA quiescent current impact on overall battery life in portable designs. Verify that the open-drain output suits the downstream logic interface requirements.

Part Context

This part belongs to the MAX6328U series of ultra-low-power reset circuits. It shares the same family architecture as variants with different voltage thresholds and packages. The series is widely used in consumer electronics and industrial applications requiring reliable power monitoring with minimal standby current draw.

Replacement Considerations

MAX6328UR28+T is a direct pin-compatible alternative within the same series offering identical electrical characteristics.