MAX6328UR23

Overview

The MAX6328UR23+T is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of up to 5.5 V and features an active-low, open-drain output. The device monitors a specific input with a threshold voltage of 2.32 V and an overvoltage threshold of 2.355 V. It provides a reset delay time of 185 ms and maintains an accuracy of 1.5%. The component consumes a working power supply current of 500 nA and has a maximum power dissipation of 320 mW. It is housed in a SOT-23-3 package and functions reliably across a temperature range from -40°C to +85°C.

Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Integrated precision bandgap reference and comparator for accurate monitoring
• Internal hysteresis eliminates the need for external components

Applications

• Monitoring battery voltages in portable devices
• Supervising power supplies in microprocessor systems
• Ensuring system reliability in embedded digital circuits

Procurement Notes

Verify the exact suffix against official datasheets to confirm threshold voltage and package type. Ensure compatibility with existing PCB footprints for the SOT-23-3 package. Confirm RoHS compliance status if required by project specifications. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a fixed 2.32 V threshold is required for single-supply monitoring. Consider the open-drain output configuration for interfacing with various logic levels. Evaluate the 500 nA quiescent current against strict power budget constraints. Verify that the 185 ms reset timeout meets the system's startup timing requirements.

Part Context

This part belongs to the MAX6328 family of ultra-low-power reset circuits. It shares functional similarities with other Maxim Integrated supervisors but differs in specific threshold voltages and output configurations. The series is designed to replace discrete resistor networks and comparators, simplifying design and reducing board space.

Replacement Considerations

MAX6328UR23+T and MAX6328UR23+TG65 are listed as corresponding components.