MAX6347XR36-T

Overview

The MAX6347XR36-T is a microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power supply voltages and asserts an active-high, push-pull reset signal when the VCC voltage drops below a preset threshold of 3.6V. The device includes a fixed 100ms reset timeout to ensure stable system recovery. It operates within a temperature range of -40°C to +85°C and is housed in a space-saving SC-70-3 surface-mount package.

Feature Summary

• Provides precise monitoring of power supply voltages with a factory-trimmed threshold.
• Asserts an active-high reset signal via a push-pull output stage.
• Guarantees correct state operation down to 1V supply voltage.
• Features a fixed 100ms reset timeout for reliable system initialization.

Applications

• Portable and battery-powered equipment
• Computers and power monitoring systems
• Intelligent instruments
• Controllers and critical microprocessor pin configurations

Procurement Notes

Verify the specific threshold voltage suffix against official datasheets, as the 'XR36' designation indicates a 3.6V trip point. Confirm RoHS compliance status and lead-free packaging details directly with the manufacturer or authorized distributors. Ensure the SC-70-3 package footprint matches the design requirements before procurement.

Selection Notes

Select this component for applications requiring ultra-low supply current and compact packaging. The active-high output is suitable for logic interfaces requiring high-level reset signals. Compare with the MAX6326 series if an active-low output is preferred, or the MAX6346 series for open-drain configurations. Ensure the 3.6V threshold aligns with the target system's minimum operating voltage.

Part Context

The MAX6347 belongs to the MAX6326/MAX6327/MAX6346/MAX6347/MAX6348 family of 3-pin, ultra-low-power SC70/SOT microprocessor reset circuits. These devices eliminate external components by integrating precision comparators and timers. The MAX6347 variant specifically provides an active-high push-pull output, distinguishing it from the active-low variants in the same family.

Replacement Considerations

The MAX6347UR36+T is a documented equivalent part number within the same product line. Verify that the replacement maintains the active-high push-pull output characteristic and the 3.6V threshold specification.