MAX6328XR31+T

Overview

The MAX6328XR31+T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.2 V to 5.5 V and features an undervoltage threshold of 3.034 V with an overvoltage threshold of 3.126 V. The device provides a reset delay time of 185 ms and maintains an accuracy of 2.5%. It draws a working supply current of 1 uA and dissipates up to 174 mW. The component supports surface mount installation in SC-70-3L packages and functions across a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low-power operation with 1 uA supply current
• Dual voltage monitoring for both undervoltage and overvoltage conditions
• Active low open drain output configuration

Applications

• Portable battery-powered equipment requiring power supervision
• Microprocessor system reset circuits
• Battery backup switching applications

Procurement Notes

Verify the specific suffix 'R31' corresponds to the required 3.034 V threshold and SC-70-3L package when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the active low open drain output compatibility matches the target system logic levels. Cross-reference the exact part number against the latest distributor catalogs to avoid substitution errors.

Selection Notes

Select this component for designs requiring precise dual-rail voltage monitoring in space-constrained applications. The ultra-low quiescent current makes it suitable for energy-efficient portable devices. Verify that the 185 ms reset delay aligns with the startup requirements of the controlled microcontroller or logic circuit. Consider the 2.5% accuracy specification for critical voltage threshold applications.

Part Context

This part belongs to the MAX6328X series of ultra-low-power, dual-supply voltage supervisors. It is designed to monitor two separate voltage rails simultaneously, providing independent reset signals for each. The series is characterized by minimal power consumption and small footprint options, targeting mobile and handheld electronics where battery life and board space are critical constraints.

Replacement Considerations

MAX6328UR30+T