MAX6348XR40-T

Overview

The MAX6348XR40-T is a single-channel microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single voltage input with a fixed threshold of 4.00V and features an active-low, open-drain output. The device operates within a supply voltage range up to 5.5V and consumes only 500nA of operating supply current. It provides a reset timeout period of 100ms minimum and maintains accuracy within 1.5%. The component supports surface mount installation in an 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
• Compact SC-70-3 surface-mount packaging for space-constrained designs
• Fixed threshold voltage monitoring for precise power supervision

Applications

• Microprocessor power-on reset circuits
• Battery-powered portable electronics
• Embedded system voltage supervision

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm that the part number corresponds to the 4.00V threshold variant rather than other thresholds in the MAX6348 family. Check manufacturer documentation for RoHS compliance status and lead-free specifications prior to procurement. Ensure the supplier provides valid traceability for this discontinued or legacy series component.

Selection Notes

Select this component when a fixed 4.00V reset threshold is required for single-supply monitoring. Consider the SC-70-3 package size if board space is limited. Verify that the open-drain output configuration matches the downstream logic interface requirements. Ensure the 500nA quiescent current meets the system's power budget constraints.

Part Context

The MAX6348 series comprises low-voltage, low-power microprocessor reset circuits designed to monitor power-supply voltages. These devices assert a reset signal when the supply voltage falls below a factory-set threshold. The series includes various threshold options and package types to accommodate different application needs while maintaining high accuracy and low power consumption.

Replacement Considerations

Consult official Analog Devices documentation for cross-reference data. No public substitute part numbers are confirmed in the provided source material.