Maxim Integrated MXD1818UR23+T Microprocessor Supervisory Circuit

The MXD1818UR23+T is a highly efficient microprocessor supervisory circuit designed by Maxim Integrated to monitor power supplies in microprocessor and digital systems. It provides a precise, low-power solution to ensure that systems operate within their voltage thresholds, thus safeguarding them from unpredictable behavior due to power fluctuations or failures.

Key Features:

• Voltage Monitoring Precision: The device offers an impressive threshold accuracy of ±1.5% at room temperature and ±3% over the full temperature range, ensuring reliable monitoring and system protection.
• Low Power Consumption: With a quiescent current of just 1.5µA, the MXD1818UR23+T is an ideal choice for battery-powered and portable applications where power efficiency is critical.
• Reset Timeout Delay: It features a factory-trimmed reset timeout delay of 140ms, which provides a predictable time frame for system recovery after a power disturbance.
• Operating Voltage Range: The device operates over a wide voltage range of 1.0V to 5.0V, offering versatility in various application environments.
• Temperature Range: The MXD1818UR23+T is designed to function over an extended temperature range of -40°C to +125°C, catering to industrial and automotive requirements.

Applications:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Industrial Controllers
• Automotive Systems

The MXD1818UR23+T comes in a compact, 3-pin SOT-23 package, making it suitable for space-constrained applications. Its push-pull reset output remains asserted for the reset timeout period after V_CC rises above the reset threshold, ensuring a reliable startup for the microprocessor. This device is part of a series that provides a range of factory-set reset thresholds, making it flexible for design-specific needs.

Maxim Integrated's commitment to quality and reliability is evident in the MXD1818UR23+T, providing designers with a robust supervisory solution that ensures their systems maintain integrity and performance under varying power conditions.