The MAX807LEWE is a sophisticated microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor 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 device offers several key features that make it an essential component for any system requiring a reliable watchdog and reset function. The MAX807LEWE ensures that the µP is reset to a known state during power-up, power-down, and brownout conditions. In addition, the integrated watchdog timer supervises system operation and signals the microprocessor to reset if it finds the software to be operating erratically.

Key Features:

• Precision Monitoring: It has a precision voltage monitor that keeps a close watch on the system's power supply.
• Watchdog Timer: The built-in watchdog timer ensures that the system remains functional by forcing a system reset if the µP fails to stroke the watchdog periodically.
• Manual Reset: A manual reset feature allows for an external pushbutton to initiate a system reset, providing an additional layer of user control.
• Reset Time Delay: The MAX807LEWE features an adjustable reset timeout period, which can be set according to the specific needs of the application.
• Power Supply Glitch Immunity: Temporary dips in power supply voltage will not cause the device to issue a reset, ensuring that the µP operates smoothly through minor power disturbances.

Applications:

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

The MAX807LEWE is available in a 16-pin wide SO package, which makes it suitable for surface mount technology (SMT) and occupies minimal board space. Its operating temperature range of -40°C to +85°C allows for deployment in various environmental conditions, ensuring reliable system operation even in extreme scenarios. With Maxim Integrated's reputation for high-quality components, the MAX807LEWE is a dependable choice for ensuring system stability and integrity.