MAX6346UR33+

Overview

The MAX6346UR33+T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.65V to 5.5V and features a fixed threshold voltage of 3.3V. The device provides an active-low, push-pull reset output with a typical reset delay time of 200ms. It consumes ultra-low power, drawing only 500nA of operating current. The component is housed in a compact SOT-23-3 package and supports surface-mount installation. It functions without manual reset or watchdog timer capabilities.

Feature Summary

• Ultra-low-power consumption suitable for battery-operated systems
• Fixed threshold voltage monitoring for precise supervision
• Active-low push-pull output stage for direct logic interfacing

Applications

• Microprocessor reset circuits
• Battery-powered portable devices
• Embedded system power supervision

Procurement Notes

Verify the specific suffix (e.g., +T) against official datasheets to confirm packaging type such as cut tape or reel. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated. Confirm RoHS compliance status through official documentation before procurement.

Selection Notes

Select this component when a fixed 3.3V threshold is required for system supervision. Consider the SOT-23-3 package size for space-constrained designs. Verify that the 200ms reset timeout aligns with system startup requirements. Ensure compatibility with the target supply voltage range.

Part Context

This part belongs to the MAX6346 family of ultra-low-power reset circuits. It is designed to monitor single-channel voltages. The series offers various threshold options. The device integrates precision bandgap references and comparators. It eliminates external components for basic voltage supervision tasks.

Replacement Considerations

Check for MAX6346 variants with different threshold voltages if 3.3V is not suitable. Verify pinout compatibility with existing PCB layouts. Confirm package dimensions match the footprint.