MAX6326UR31

Supervisors Overview

The MAX6326UR31+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power supply voltages in digital systems, asserting an active-low reset signal when VCC drops below the factory-set threshold of 3.1V. The device features a push-pull output and a minimum reset timeout period of 100ms. It operates within a voltage range up to 5.5V with ultra-low supply current of 1µA maximum. The component is housed in a space-saving SOT-23-3 package and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Ultra-low supply current consumption suitable for portable equipment
• Precision monitoring of standard power-supply voltages
• Active-low push-pull reset output stage

Supervisors Applications

• Portable/battery-powered controllers
• Power monitoring in computers
• Intelligent instruments

Supervisors Procurement Notes

Verify the specific suffix against official datasheets to confirm output type and threshold accuracy. Confirm RoHS compliance status and lead-free certification requirements before procurement. Check for obsolescence notices or PCN updates regarding package changes. Ensure the sourcing channel provides valid traceability documentation for quality assurance purposes.

Supervisors Selection Notes

Select this component for applications requiring precise voltage supervision with minimal power drain. The fixed 3.1V threshold suits 3.3V logic systems. Verify that the push-pull output capability matches the downstream load requirements. Consider the SOT-23-3 footprint constraints during PCB layout design to ensure adequate thermal and electrical performance.

Supervisors Part Context

This part belongs to the MAX6326/MAX6327/MAX6328 family of 3-pin, ultra-low-power SC70/SOT µP reset circuits. These devices eliminate external components by integrating factory-trimmed thresholds between 2.2V and 4.63V. The family ensures circuit reliability by ignoring fast transients on VCC and maintaining correct states down to 1V.

Supervisors Replacement Considerations

Compatible substitutes include other members of the MAX6326 family with matching output types and thresholds, such as MAX6326UR23+T or MAX6326UR38+T. Verify pinout compatibility and electrical specifications before substitution.