MAX6326UR28+

Supervisors Overview

The MAX6326UR28+ is a CMOS voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single power supply input with a fixed threshold of 2.8V. The device features an active-low, open-drain reset output and operates within a supply voltage range up to 5.5V. It provides a guaranteed reset delay time of 100ms minimum. The component is housed in a compact SOT-23-3 surface-mount package and supports operation across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Compact three-pin SOT-23 package design
• Active-low open-drain reset signal generation

Supervisors Applications

• Microcontroller (MCU) power supply monitoring
• Microprocessor (MPU) system supervision
• Portable electronic devices requiring low quiescent current

Supervisors Procurement Notes

Verify the specific suffix 'UR28' confirms the 2.8V threshold and SOT-23-3 package configuration. Confirm RoHS compliance status as '+'. Check manufacturer lifecycle status for availability constraints. Ensure the ordering part number matches the required reset delay characteristics.

Supervisors Selection Notes

Select this component when a fixed 2.8V threshold is required for single-supervision applications. The ultra-low power profile makes it ideal for portable electronics. Verify that the active-low open-drain output logic aligns with the target microcontroller or processor reset pin requirements.

Supervisors Part Context

This part belongs to the MAX6326/27/28 series of ultra-low-power reset circuits. These devices integrate power-supply monitoring functions into a small footprint, replacing discrete components. The series is designed to improve system reliability by ensuring proper reset sequences during power-up, power-down, and brownout conditions.

Supervisors Replacement Considerations

Cross-reference with other MAX6326 variants for different thresholds. Verify package compatibility if substituting with similar SOT-23-3 supervisors from other manufacturers.