The NXP MAX809MW is a microprocessor (µP) supervisory circuit designed to monitor the power supplies in µP and digital systems. It provides a significant function in ensuring system reliability by managing the reset activity during power-up, power-down, and brown-out conditions. Its compact design and robust feature set make it an ideal choice for a wide range of applications, including computers, controllers, intelligent instruments, and portable/battery-powered products.

Key Features

• Precision Monitoring: Equipped with a precision voltage sensor, the MAX809MW is capable of monitoring the system voltage with a high degree of accuracy, ensuring that the µP is reset to a known state during power disturbances.
• Reset Timeout: It has an inbuilt timer that provides a reset signal to the µP for a minimum of 140ms after the voltage has returned to an acceptable level, allowing the system to stabilize before resuming operation.
• Low Power Consumption: The device is optimized for low power consumption, which is crucial for battery-operated devices, thereby extending the life of the product.
• Wide Operating Voltage Range: It supports a broad range of supply voltages, accommodating various system requirements and ensuring versatility across different platforms.
• Temperature Range: The MAX809MW operates effectively across a wide temperature range, making it suitable for use in environments with varying thermal conditions.

Package and Availability

The MAX809MW is available in a compact SOT-23 package, which is ideal for space-constrained applications. Its small footprint allows for efficient use of PCB real estate, contributing to overall system miniaturization.

Applications

Due to its reliability and versatility, the NXP MAX809MW is widely used in various applications, including:

• Computers and Servers
• Embedded Systems
• Portable and Battery-powered Devices
• Industrial Controllers
• Intelligent Instrumentation

In conclusion, the NXP MAX809MW is a highly reliable and efficient supervisory circuit that offers excellent monitoring and control capabilities for systems that require robust power management solutions.