MAX6347XR44+T

Overview

The MAX6347XR44+T is a single-channel voltage supervisor IC from the MAX6348 family, designed for ultra-low-power applications. It operates within a supply voltage range up to 5.5 V and features a fixed threshold of 4.38 V with an accuracy of 1.5%. The device provides an active low, open-drain output with a reset delay time of 185 ms. It consumes only 500 nA of operating supply current and includes overvoltage detection at 4.446 V. The component is housed in a compact SC-70-3 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Single-channel monitoring with fixed threshold voltage
• Compact SC-70-3 surface-mount packaging

Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered instrumentation systems
• Embedded microcontroller reset circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Check for obsolescence notices as this part may be discontinued. Ensure storage conditions meet specified limits to maintain performance integrity during handling and installation processes.

Selection Notes

Select this component when a fixed 4.38 V threshold is required for single-supply monitoring. Consider the open-drain output configuration for compatibility with specific logic levels. Evaluate the 500 nA quiescent current against system power budgets. Verify that the SC-70-3 package fits the available PCB space constraints.

Part Context

This supervisor belongs to the MAX6348 series of ultra-low-power reset circuits. The series offers various threshold options and output configurations. The MAX6347 variant specifically denotes the push-pull/totem pole output version in some contexts, but datasheets indicate open-drain for this specific suffix combination. It serves as a critical protection element in power management architectures.

Replacement Considerations

Check for MAX6348XR44+T as a potential alternative within the same family. Verify pinout compatibility before substitution. Ensure threshold voltages match application requirements exactly.