Maxim Integrated's MAX819LESA+ Microprocessor Supervisory Circuit

The MAX819LESA+ is a compact, highly reliable microprocessor supervisory circuit designed by Maxim Integrated to monitor power supplies in microprocessor systems. It provides a significant layer of protection by ensuring that the microprocessor always starts up in a known state. This is particularly crucial for systems that cannot tolerate any uncertainty during power-up sequences.

This supervisory circuit offers a combination of functions such as reset output during power-up, power-down, and brownout conditions. The MAX819LESA+ operates with a nominal supply voltage of 4.65V, which is suitable for 5V-powered microprocessors. Its precision voltage monitoring feature ensures that the system's microprocessor and other critical components are protected from unpredictable voltage fluctuations that can lead to system failure.

Key features of the MAX819LESA+ include:

• Power Supply Monitoring: The device keeps a vigilant eye on the system power supply, issuing a reset to the microprocessor during an under-voltage condition. This ensures that the system does not operate under conditions that could lead to erratic or unpredictable behavior.
• Manual Reset Capability: In addition to automatic monitoring, the MAX819LESA+ provides a manual reset input, allowing for an external trigger to reset the system as needed.
• Low Power Consumption: With its low power consumption, the MAX819LESA+ is an energy-efficient choice for battery-operated applications where power conservation is critical.
• Compact Package: The device is available in a small 8-pin SO package, making it an ideal choice for space-constrained applications.

Whether it's being used in computers, controllers, intelligent instruments, or portable consumer products, the MAX819LESA+ enhances system reliability by providing essential monitoring and control functions. Its easy integration and robust feature set make it a go-to solution for engineers looking to safeguard their microprocessor-based systems.

With Maxim Integrated's reputation for quality and performance, the MAX819LESA+ is a strategic choice for maintaining system integrity and prolonging the life of electronic products.