Maxim Integrated's MAX6412UK22+ Microprocessor Reset Circuit

The MAX6412UK22+ from Maxim Integrated is a highly reliable, low-power microprocessor (µP) supervisory circuit designed 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 in systems that require voltage monitoring.

This compact device is tailored to maintain system integrity by monitoring the power supply voltage. In the event of a drop below a preset threshold, the MAX6412UK22+ asserts a reset signal to reset the µP, thus safeguarding the system from unpredictable behavior. The reset signal remains asserted for a minimum timeout period after V<sub>CC has risen above the reset threshold level, ensuring the system has adequate time to stabilize.

One of the key features of the MAX6412UK22+ is its factory-preset reset threshold voltage of 2.20V, which is suitable for low-voltage applications. The reset output is available in both push-pull and open-drain configurations, making it versatile for different design requirements. The device operates over a wide voltage range of 1.20V to 5.50V, catering to a variety of power supply options.

Designed in a compact SOT23-5 package, the MAX6412UK22+ is ideal for space-constrained applications. Its low supply current of only 1.5µA (typical) makes it an energy-efficient choice for portable and battery-operated devices. The device's operating temperature range from -40°C to +125°C ensures reliable operation across diverse environmental conditions.

The MAX6412UK22+ is an excellent choice for a range of applications, including portable/battery-powered equipment, computers, controllers, intelligent instruments, critical µP and µC power monitoring, and automotive systems. With its precision voltage monitoring and robust feature set, the MAX6412UK22+ from Maxim Integrated is a crucial component for ensuring the stability and reliability of electronic systems.