MAX6348XR36-T

Overview

The MAX6348XR36-T is a single-channel microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power supply voltages with a fixed threshold of 3.6V and operates within a supply range up to 5.5V. The device features an active-low, open-drain reset output that asserts when the monitored voltage falls below the threshold. It includes a minimum reset timeout delay of 100ms to ensure stable power-up sequencing. Designed for surface-mount applications, it utilizes a compact SC-70-3 package. The component supports industrial temperature ranges from -40°C to +85°C and consumes low quiescent current, making it suitable for battery-powered and space-constrained embedded systems.

Feature Summary

• Monitors single power supply rail with factory-set 3.6V threshold
• Provides active-low open-drain reset signal with guaranteed timeout delay
• Operates in extended industrial temperature range with low power consumption

Applications

• Embedded system power supervision
• Microprocessor reset circuits
• Battery-operated device monitoring

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to limited availability status. Confirm RoHS compliance and lead-free status as specified in official documentation. Ensure packaging type matches project requirements, noting potential variations in reel or cut tape formats. Cross-reference datasheet revisions to confirm electrical parameters remain consistent with design specifications.

Selection Notes

Select this component when a fixed 3.6V threshold is required for power monitoring. Compare against adjustable threshold variants if voltage flexibility is needed. Verify package compatibility with PCB footprint constraints, specifically the SC-70-3 form factor. Assess thermal performance within the -40°C to +85°C operating range to ensure reliability under intended environmental conditions.

Part Context

The MAX6348 series belongs to Maxim Integrated's uPower Reset Circuit family, designed for low-voltage, low-power microprocessor supervision. These circuits are engineered to monitor power supplies from 1.8V to 5.0V while minimizing current consumption. The MAX6348 variant specifically offers a fixed threshold option, simplifying design implementation for standard voltage rails without requiring external resistor networks for threshold adjustment.

Replacement Considerations

Consult official cross-reference guides for compatible alternatives such as other MAX6348 variants with different thresholds or timeout delays. Verify pinout compatibility before substituting with similar supervisory ICs from Analog Devices or third-party manufacturers.