Maxim Integrated MAX6822RUK Microprocessor Supervisory Circuit

The Maxim Integrated MAX6822RUK is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected behavior in digital systems. This compact component is housed in a space-saving SOT23-5 package, making it an ideal choice for portable devices where space is at a premium.

With its precision monitoring capabilities, the MAX6822RUK is engineered to monitor power supplies in µP and digital systems, providing a quick and assertive response if the supply voltage drops below a preset threshold. The device ensures that the µP resets cleanly during power-up, power-down, or brown-out conditions. It boasts a factory-trimmed reset threshold voltage, which allows designers to select the appropriate voltage level for their specific application.

One of the key features of the MAX6822RUK is its manual reset input. This feature enables a system reset to be initiated with an external pushbutton or logic signal, granting users direct control over the reset process. This is particularly useful for system maintenance or in the event of software anomalies.

The device also offers a 140ms (min) reset timeout period, which ensures that the system has adequate time to stabilize before the µP begins operation. This timeout period is critical for preventing the µP from starting up in an unstable state, which could lead to system errors or malfunction.

In addition to its reset management functions, the MAX6822RUK features a low supply current, making it an energy-efficient choice for battery-powered applications. Its wide operating voltage range from 1.2V to 5.5V gives designers the flexibility to use it in various applications ranging from low-voltage core systems to 5V logic circuits.

The versatility and reliability of the Maxim Integrated MAX6822RUK make it an essential component in a wide array of applications, including portable/battery-powered equipment, computers, controllers, intelligent instruments, and critical µP power monitoring systems.

Overall, the MAX6822RUK offers a robust solution for system monitoring with its precise voltage monitoring, manual reset capability, and energy-efficient design, ensuring that digital systems operate reliably and consistently under various conditions.