Maxim Integrated DS1811R-10+T Microprocessor Monitor

The Maxim Integrated DS1811R-10+T is a robust microprocessor (µP) supervisory circuit designed to monitor the power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V-powered circuits.

This microprocessor monitor ensures that the µP is fully reset during power-up, power-down, and brownout conditions. The DS1811R-10+T has an active-low RESET signal that remains asserted until the Vcc supply voltage reaches the reset threshold level and maintains the reset for approximately 150ms after Vcc has risen above the reset threshold, ensuring a proper system reset. The reset threshold level for the DS1811R-10+T is precisely set at 4.65V, making it suitable for +5V powered applications.

One of the key features of the DS1811R-10+T is its small size. It is available in a space-saving SOT-23 package, which is ideal for use in systems where space is at a premium. Additionally, the device operates over a wide temperature range of -40°C to +85°C, making it suitable for use in industrial environments and other applications with varying temperature conditions.

The DS1811R-10+T offers a push-pull output driver, which provides a strong signal that can directly interface with other components in the system without the need for additional buffering. This feature helps to simplify the design and reduces component count.

Key applications for the DS1811R-10+T include microprocessor systems, computers, controllers, intelligent instruments, critical µP power monitoring, and portable/battery-powered equipment. It provides a reliable solution for systems that require an effective method to ensure proper operation through power disturbances.

Overall, the Maxim Integrated DS1811R-10+T is a practical, cost-effective solution for power monitoring and µP system stability. Its precision, small footprint, and ease of integration make it an excellent choice for designers looking to enhance the reliability of their digital systems.