MAX6328UR23-T

Overview

The MAX6328UR23+T is a voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range up to 5.5 V and features a threshold voltage of 2.32 V with an accuracy of 1.5%. The device provides an active low, open-drain output with a reset delay time of 185 ms. It consumes 500 nA of operating current and includes overvoltage detection at 2.355 V. The component supports power dissipation of 320 mW and functions in temperatures from -40°C to +85°C.

Feature Summary

• Ultra-low-power operation suitable for battery-supplied systems
• Active low open-drain reset output for direct microprocessor interfacing
• Integrated overvoltage protection capability

Applications

• Portable electronic devices requiring extended battery life
• Microprocessor system monitoring
• Battery-powered instrumentation

Procurement Notes

Verify the exact part number suffix against official documentation, as variations such as +T indicate specific packaging or compliance standards. Confirm availability through authorized distributors, as stock levels fluctuate. Ensure the selected variant matches the required threshold voltage and package type for your specific design implementation.

Selection Notes

Select this component when ultra-low quiescent current is critical for power management. The fixed 2.32 V threshold suits applications monitoring 3.3 V or similar logic rails. Consider the open-drain output requirement for pull-up resistor integration. Verify that the 185 ms reset delay aligns with system startup timing requirements.

Part Context

This part belongs to the MAX6328U series of supervisory circuits designed for low-power applications. It is part of Maxim Integrated's portfolio of voltage supervisors, which are widely used in consumer electronics and industrial control systems for ensuring reliable system resets during power fluctuations.

Replacement Considerations

Check for MAX6328 variants with different threshold voltages if the 2.32 V level is unsuitable. Other series members like MAX6326 or MAX6327 may offer alternative features but require pinout and parameter verification.