MAX6347XR41-T

Overview

The MAX6347XR41-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 input voltage drops below a factory-set threshold of 4.1V. The device operates with ultra-low supply current and includes a minimum 100ms power-on reset pulse width to ensure system stability during power transitions. It is housed in a compact SC-70-3 surface-mount package.

Feature Summary

• Provides active-high push-pull reset output for reliable logic interfacing
• Monitors single power-supply voltage with precision threshold detection
• Ensures correct reset state down to 1V supply voltage
• Features fixed 100ms minimum reset timeout period

Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor and digital system power supervision
• Circuits powered by 2.5V, 3V, 3.3V, or 5V rails
• Systems requiring elimination of external adjustment components

Procurement Notes

Verify the specific suffix 'XR41' confirms the 4.1V threshold variant. Confirm RoHS compliance status and lead times with authorized distributors as availability may be restricted. Ensure the SC-70-3 package footprint matches the design requirements before finalizing procurement orders.

Selection Notes

Select this component when an active-high reset signal is required rather than the more common active-low configuration. It is suitable for applications where the 4.1V threshold aligns with the target supply rail monitoring needs. Consider the MAX6348 if an open-drain output is preferred instead.

Part Context

This part belongs to the MAX6347 family of ultra-low-power reset circuits. It shares the same core functionality and package as other variants but is distinguished by its specific 4.1V threshold setting and active-high output polarity, differentiating it from the active-low MAX6346 or open-drain MAX6348.

Replacement Considerations

The MAX6347XR41+T is the non-tape-and-reel equivalent. For open-drain alternatives, consider the MAX6348 series. For active-low push-pull options, the MAX6346 series is functionally similar but differs in output polarity.