Product Overview: MAX809R Microprocessor Reset Circuit

The MAX809R from NXP Semiconductors is a highly efficient 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 electronic applications. This compact component is essential for managing system resets, ensuring that the µP boots up in a known state every time.

Key Features

• Precision Voltage Monitoring: The MAX809R is engineered to monitor 3-pin voltage levels with precision, ensuring that the system operates within its designated voltage thresholds.
• Low Power Consumption: Designed for energy-sensitive applications, it consumes minimal power, contributing to the overall efficiency of the system it is integrated into.
• Manual Reset: It includes a manual reset feature that allows the user to initiate a system reset, providing additional control over system operation.
• Reset Timeout: The device offers a 140 ms min reset timeout delay, which ensures that the system has sufficient time to stabilize before normal operations resume.
• Compact SOT-23 Packaging: The MAX809R comes in a small SOT-23 package, making it suitable for space-constrained applications while also simplifying the PCB design process.
• Temperature Range: It operates over a wide temperature range, making it versatile for use in environments with varying thermal conditions.

Applications

The MAX809R is ideal for a variety of applications where reliable system monitoring is crucial. It is commonly used in computers, controllers, intelligent instruments, portable/battery-powered equipment, and other embedded systems. Its ability to provide a controlled reset sequence makes it an invaluable component in ensuring system stability and performance.

Conclusion

In conclusion, the NXP MAX809R is a robust and reliable solution for system reset management. Its precision voltage monitoring, low power consumption, and compact form factor make it a preferred choice for designers looking to enhance system reliability in their digital and microprocessor-based applications.