MAX6328XR26

Overview

The MAX6328XR26+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of up to 5.5 V and features a fixed threshold voltage of 2.63 V with an accuracy of 1.5%. The device provides an active-low, open-drain reset output with a typical reset delay time of 185 ms. It consumes a maximum operating supply current of 500 nA. The component supports a single monitored input without manual reset or watchdog timer functionality. It is available in SC-70-3 packages and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated applications
• Fixed threshold voltage monitoring for precise power supervision
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring low standby current
• Microprocessor power supply supervision systems
• Battery-powered embedded control circuits

Procurement Notes

Verify the specific suffix designation when ordering, as it determines the package type and tape/reel configuration. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure that the selected variant matches the required threshold voltage and package dimensions for your PCB layout. Cross-reference the manufacturer's latest datasheet revision to confirm electrical characteristics and pinout assignments before finalizing component selection.

Selection Notes

Select this component when a fixed voltage threshold near 2.63 V is required for system supervision. Consider the 1.5% accuracy specification against your system's noise margins. Evaluate the 185 ms reset delay against your microcontroller startup requirements. Verify that the open-drain output interface aligns with your target logic levels and pull-up resistor configurations.

Part Context

This part belongs to the MAX6328X series of ultra-low-power reset circuits designed for monitoring single power supplies. The series offers various threshold voltages and package options to accommodate different design constraints. These components are engineered to provide reliable reset signals during power-up and brown-out conditions while minimizing quiescent current draw.

Replacement Considerations

Compatible alternatives within the same family include the MAX6328UR26+T and MAX6328XR23+T, which share similar functional characteristics but differ in package style or threshold voltage settings.