MAX6326XR22

Supervisors Overview

The MAX6326XR22+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 falls below the factory-set threshold of 2.2V. The device features a push-pull output and operates within a voltage range up to 5.5V with a typical supply current of 1µA. It provides a minimum reset timeout period of 100ms after VCC rises above the threshold. The component is housed in a space-saving SC-70-3 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 power-supply voltages with factory-trimmed thresholds
• Active-low push-pull reset output ensuring correct state down to 1V

Supervisors Applications

• Portable/battery-powered controllers
• Computers and power monitoring systems
• Intelligent instruments

Supervisors Procurement Notes

Verify the specific suffix 'R22' against official datasheets to confirm the exact 2.2V threshold variant. Check current availability status as distribution channels may list limited stock or discontinuation notices for specific reel quantities. Ensure the SC-70-3 package matches the target PCB footprint requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a low-power, single-channel supervisor with a precise 2.2V threshold is required. The push-pull output drives loads directly without external pull-ups. Consider the SC-70-3 package size constraints and the 100ms minimum timeout duration relative to system startup timing requirements compared to other MAX6326 variants.

Supervisors Part Context

This part belongs to the MAX6326/MAX6327/MAX6328 family of ultra-low-power microprocessor reset circuits. These devices eliminate external components for 2.5V, 3V, 3.3V, and 5V powered circuits. The MAX6326 specifically offers an active-low push-pull output, distinguishing it from the open-drain MAX6328 and active-high MAX6327 variants within the same low-power series.

Supervisors Replacement Considerations

The MAX6326UR22+T serves as a direct replacement offering identical electrical characteristics but utilizes the SOT-23-3 package instead of SC-70-3. Verify pinout compatibility and physical footprint differences during substitution.