Maxim Integrated MXD1815UR31+T

The MXD1815UR31+T from Maxim Integrated is a high-quality microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a precise, low-cost method for system monitoring and ensures the reliability of system operation by actively managing the reset function for most types of microprocessors and microcontrollers.

This device maintains system integrity by asserting a reset signal whenever the VCC supply voltage drops below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. The MXD1815UR31+T operates with a very low supply current draw (typically only 1.6µA), which is crucial for battery-powered applications where power efficiency is a key consideration.

The MXD1815UR31+T comes in a compact, surface-mount SOT-323 package, making it suitable for space-constrained applications. It supports a wide operating temperature range of -40°C to +125°C, ensuring reliable operation under extreme conditions. This makes the device an excellent choice for automotive systems, portable devices, and any other systems that require robust operation in varying environmental conditions.

Key features of the MXD1815UR31+T include:

• Factory-trimmed VCC reset threshold for high accuracy
• Low supply current, ideal for portable equipment
• Guaranteed reset valid to VCC = 1V
• Immune to short VCC transients
• 140ms min power-on reset pulse width
• Wide operating temperature range
• Compact SOT-323 package

With its precise voltage monitoring capability and low power consumption, the MXD1815UR31+T is an essential component for enhancing system reliability in a wide range of applications. Whether it's used in complex automotive electronics, critical industrial systems, or everyday consumer devices, this reset circuit from Maxim Integrated provides the security and stability needed for optimal performance.