MAX6328UR24

Overview

The MAX6328UR24+T is a supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring single-channel power supply voltages. It operates within a voltage range of 1.2V to 5.5V with a fixed threshold of 2.4V. The device features an active-low open-drain output and provides a minimum reset timeout of 100ms. It supports surface-mount installation in a SOT-23-3 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Monitors system voltage levels against a precise internal reference threshold
• Generates a reset signal via an active-low open-drain output when voltage drops below the set point
• Ensures stable operation through a dedicated timeout period following power-up or recovery

Applications

• Microprocessor (µP) reset circuits
• Battery-powered systems requiring voltage supervision
• Portable equipment power management

Procurement Notes

Verify the specific suffix (+T) indicates tape-and-reel packaging when sourcing components. Confirm that the part number includes the lead-free designation if RoHS compliance is required for your assembly process. Cross-reference the manufacturer's latest datasheet to ensure the electrical characteristics match your design requirements before finalizing procurement orders.

Selection Notes

Select this component when a fixed 2.4V threshold is appropriate for the monitored rail. The open-drain output requires an external pull-up resistor, which allows flexibility in interfacing with different logic voltage levels. Ensure the application environment stays within the specified operating temperature range to maintain performance reliability.

Part Context

This part belongs to the MAX6328U family of ultra-low-power reset circuits. These devices are engineered to eliminate external components while providing reliable supervision for digital systems. The series offers various threshold options and output configurations to suit diverse power management needs in compact form factors.

Replacement Considerations

Check for other variants within the MAX6328U family that share the same SOT-23-3 package but offer different voltage thresholds or output types. Verify pin compatibility and electrical specifications before substituting with similar supervisory ICs from the same manufacturer.