MAX6346XR38-T

Overview

The MAX6346XR38-T is a single-channel microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power-supply voltages within the +1.8V to +5.0V range, consuming only 3µA of supply current at +1.8V. The device features a fixed reset threshold voltage of 3.8V. It utilizes a push-pull active-low reset output and operates within a temperature range of -40°C to +125°C. The component is housed in a 3-pin SC-70 package.

Feature Summary

• Monitors power-supply voltages from +1.8V to +5.0V with ultra-low supply current consumption
• Provides a factory-set reset threshold voltage of 3.8V for precise supervision
• Features a push-pull active-low reset output for robust signal integrity

Applications

• Microprocessor system power monitoring
• Battery-powered portable electronics
• Consumer electronic devices requiring low-power supervision

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc. or Maxim Integrated, as both entities are associated with this product line. Ensure the part number matches the exact threshold voltage code '38' corresponding to 3.8V. Check for RoHS compliance status if required by your manufacturing standards. Validate the package type is SC-70-3L upon physical inspection.

Selection Notes

Select this component when a fixed 3.8V reset threshold is required for systems operating between 1.8V and 5.0V. Consider the ultra-low 3µA current consumption for battery-sensitive applications. The push-pull output allows direct interfacing with digital logic without external pull-ups. Evaluate the SC-70 package size against available board space constraints. Ensure the operating temperature range meets the environmental requirements of the final assembly.

Part Context

This component belongs to the MAX6346 series of low-voltage, low-power microprocessor reset circuits. These devices are designed to monitor supply voltages and assert a reset signal when voltages fall below specified thresholds. The series offers various threshold options and timeout delays to accommodate different system requirements. The MAX6346 variant specifically provides a fixed threshold configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design parameters before considering alternative components.