MAX6327UR28

Overview

The MAX6327UR28+T is a single-channel power supply support circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a voltage range of 1.2V to 5.5V with a fixed threshold of 2.8V. The device features an active-low reset output and a typical reset delay of 200ms. It consumes low quiescent current and functions reliably across an extended temperature range from -40°C to +85°C. Packaged in a compact SOT-23-3 surface-mount case, it provides essential supervision for microprocessor systems.

Feature Summary

• Provides precise voltage monitoring with a fixed threshold for system reliability
• Generates an active-low reset signal upon power-up or brownout conditions
• Operates efficiently with minimal quiescent current consumption
• Ensures stable performance across wide industrial temperature ranges

Applications

• Microprocessor supervisory circuits
• Portable battery-powered equipment
• Consumer electronics requiring low-power monitoring
• Industrial control systems

Procurement Notes

Verify the specific suffix (e.g., UR28) to confirm the exact threshold voltage matches design requirements. Confirm RoHS compliance status and package availability through authorized distributors. Check for lead-free specifications and ensure the component meets environmental regulations for the target market. Validate datasheet revisions before final integration.

Selection Notes

Select this component when a fixed 2.8V threshold is required for single-supply monitoring. Consider the SOT-23-3 package for space-constrained PCB layouts. Ensure the application does not require manual reset functionality or watchdog timers, as this variant lacks those features. Verify that the operating voltage range aligns with the system's nominal supply levels.

Part Context

This part belongs to the MAX632x series of ultra-low-power voltage supervisors. It shares architectural similarities with other variants like the MAX6326 and MAX6328 but differs in threshold settings and package options. The series is designed for applications demanding high accuracy and low standby current without complex configuration requirements.

Replacement Considerations

MAX6327UR28+T