MAX6328UR27+T

Overview

The MAX6328UR27+T is a voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 2.7 V for monitoring a single input channel. The device provides an active low, open-drain reset output with a typical reset delay time of 185 ms. Designed for surface mount installation in a SOT-23-3 package, it supports operation across a temperature range of -40°C to +85°C. Key electrical characteristics include a supply current of 500 nA, accuracy of 1.5%, and an overvoltage threshold of 2.741 V.

Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Fixed threshold voltage ensures precise power supervision
• Compact SOT-23-3 packaging for space-constrained designs

Applications

• Portable electronic devices requiring extended battery life
• Embedded systems needing reliable power-on reset signals
• Microcontroller-based circuits for voltage monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific lot traceability requirements. Ensure storage conditions align with moisture sensitivity level specifications to maintain device integrity prior to assembly.

Selection Notes

Select this component when a fixed 2.7 V threshold is required for single-channel voltage monitoring. Consider the 500 nA quiescent current for low-power applications. Verify that the open-drain output configuration matches the system's pull-up requirements and that the SOT-23-3 package fits the PCB layout constraints.

Part Context

Part of the MAX6328U series, which offers various threshold voltages. This specific suffix indicates the 2.7 V version. The series is designed for simple reset/power-on reset functions without manual reset inputs or watchdog timers, focusing on basic voltage supervision tasks.

Replacement Considerations

Check for other MAX6328 variants with different threshold voltages if system requirements change. Verify pin compatibility with alternative supervisors from the same family before substitution.