MAX6346XR46-T

Overview

The MAX6346XR46-T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 4.63 V for monitoring power rails. The device provides an active low, push-pull reset output with a typical reset delay time of 185 ms. It consumes a maximum operating supply current of 500 nA, ensuring ultra-low-power performance. The component is housed in a compact SOT-23-3 package and is rated for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low-power consumption with 500 nA supply current
• Active low push-pull reset output configuration
• Compact SOT-23-3 surface-mount packaging

Applications

• Portable battery-powered equipment
• Handheld instruments
• Wireless communication devices

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing from distributors. Confirm the manufacturer designation as Analog Devices Inc. or Maxim Integrated, as both names appear in official documentation. Ensure the part number matches the exact threshold voltage of 4.63 V required for your design. Check RoHS compliance status through the manufacturer's official datasheet before finalizing procurement.

Selection Notes

Select this component when a fixed 4.63 V supervision threshold is required for systems powered by 5 V rails. The push-pull output allows direct interfacing with digital logic without external pull-up resistors. Consider the 185 ms reset timeout to ensure adequate stabilization time for the monitored system. The low quiescent current makes it suitable for applications where battery life is critical.

Part Context

This part belongs to the MAX6346 series of microprocessor supervisory circuits designed for low-voltage applications. The series offers various threshold voltages and packages to accommodate different system requirements. The XR46 variant specifically targets 4.63 V monitoring needs in a small form factor.

Replacement Considerations

The ADM6346-42ARTZ-R7 is a related supervisory circuit from Analog Devices but features a different threshold voltage of 4.2 V. Verify that the threshold difference does not impact system reliability before substituting.