MAX6346UR33-T

Overview

The MAX6346UR33-T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single input voltage with a threshold of 3.3V and an overvoltage threshold of 3.351V. The device features an active low, push-pull output and a reset delay time of 185ms. It operates within a supply voltage range up to 5.5V and maintains accuracy of 1.5%. The component consumes 500nA of operating current and functions between -40°C and +85°C in an SOT-23-3 package.

Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Active low push-pull reset output for direct logic interfacing
• Compact SOT-23-3 surface mount packaging

Applications

• Portable electronic devices requiring power supervision
• Battery-powered instrumentation systems
• Microprocessor reset circuits in embedded applications

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the UR33 variant corresponds to the 3.3V threshold requirement for your design. Ensure compatibility with the SOT-23-3 footprint during PCB layout. Check RoHS compliance status if required by your manufacturing standards. Validate lead-free specifications against assembly process requirements.

Selection Notes

Select this component when a fixed 3.3V threshold is required for system monitoring. Consider the 185ms reset delay for timing constraints in your application. Evaluate the 500nA quiescent current impact on overall system power budget. Compare the push-pull output capability against open-drain alternatives if bus sharing is needed. Verify the operating temperature range meets environmental conditions.

Part Context

This part belongs to the MAX6346 series of microprocessor supervisory circuits. The series offers various threshold voltages and timeout delays. It is designed for low-voltage digital systems. The manufacturer provides multiple package options within this family. The component supports standard surface mount assembly processes.

Replacement Considerations

Check for MAX6346 variants with different thresholds or packages. Verify functional equivalence for other MAX6346 series parts. Confirm pinout compatibility before substitution. Review datasheet differences for timeout delays.