Maxim Integrated MAX6381XR46D2+T Microprocessor Reset Circuit

The Maxim Integrated MAX6381XR46D2+T is a highly reliable and precise microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and accuracy required in critical applications. This particular device is part of the MAX6381 series, which is known for its small size and low power consumption, making it an excellent choice for portable and space-constrained applications.

Featuring a factory-set reset threshold voltage of 4.6V, the MAX6381XR46D2+T ensures that systems operate within their specified voltage range. When the VCC supply voltage drops below the reset threshold, the reset output is asserted (driven low) to reset the connected microprocessor. The reset output remains asserted for a minimum reset timeout period after VCC rises above the reset threshold, ensuring the µP has adequate time to initialize and stabilize.

This device comes in a compact, 3-pin SC70 package, which is highly beneficial for designs where space is at a premium. Its tiny footprint is complemented by its low supply current of only 1.1µA, which contributes to extended battery life in portable applications. The MAX6381XR46D2+T operates over a wide temperature range of -40°C to +125°C, accommodating the rigorous demands of automotive and industrial environments.

Key features of the MAX6381XR46D2+T include:

• Factory-Set Reset Threshold Voltage: 4.6V
• Low Supply Current: 1.1µA
• Minimum Reset Timeout Period
• Wide Operating Temperature Range: -40°C to +125°C
• Compact SC70 Packaging
• Immune to Short VCC Transients

With its robust feature set, the Maxim Integrated MAX6381XR46D2+T is ideal for use in systems that require a reliable reset signal for microprocessors, such as computers, controllers, and intelligent sensors. Its small size and low power consumption make it especially suitable for portable devices, including wearables, medical devices, and handheld instruments.

Whether used in automotive, industrial, or consumer electronics, the MAX6381XR46D2+T ensures that digital systems remain operational and safe by providing a dependable reset function whenever necessary.