Maxim Integrated MAX8215EPD Microprocessor Voltage Monitors

The Maxim Integrated MAX8215EPD is a high-precision 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 applications, ensuring that the µP is only operational with stable and adequate supply voltage. This device is particularly suitable for systems that run on a 5V power supply.

The MAX8215EPD offers a range of features that make it a versatile and essential component for system monitoring. It provides a precision voltage monitor with a factory-trimmed reset threshold of 4.65V, which is ideal for 5V-powered systems. The device ensures that upon application of power, the µP is reset to a known state by holding the reset line active for a minimum of 250ms after the supply voltage exceeds the reset threshold. This delay allows the power supply and µP to stabilize before the system starts its operation.

One of the key benefits of the MAX8215EPD is its low power consumption, making it an energy-efficient choice for portable and power-sensitive applications. The power-fail comparator feature of this device monitors the unregulated supply to provide a warning of impending power failure, allowing systems to initiate backup procedures before power is lost.

This device is also equipped with a manual reset input that allows the user to trigger a system reset with an external switch or logic signal. The MAX8215EPD is packaged in a compact 14-pin plastic DIP, providing a space-saving solution for system designs where board real estate is at a premium.

Overall, the Maxim Integrated MAX8215EPD is a robust and reliable solution for system monitoring. It is designed to enhance system reliability through its reset and monitoring functions, making it an ideal choice for a wide range of applications, including computers, controllers, intelligent instruments, and critical µP power monitoring.

For detailed specifications and application notes, designers are encouraged to refer to the official datasheet provided by Maxim Integrated.