Maxim Integrated MAX825MEUK+T Microprocessor Supervisory Circuit

The MAX825MEUK+T is a compact, highly reliable microprocessor supervisory circuit designed by Maxim Integrated to monitor power supplies in microprocessor and digital systems. It provides a crucial safeguard against low voltage conditions, which can lead to system errors and data loss. This supervisory circuit is ideal for portable and space-constrained applications due to its small SOT-23 packaging.

One of the key features of the MAX825MEUK+T is its ability to provide a reset signal to the microprocessor during power-up, power-down, and brown-out conditions. The reset output remains operational with VCC as low as 1.2V, ensuring that the microprocessor resets properly even in low voltage scenarios. The device also offers a manual reset input, which allows for a system reset to be triggered with an external pushbutton or logic signal.

The MAX825MEUK+T supervisory circuit has an adjustable threshold voltage that can be set by external resistors, which provides flexibility to work with a variety of microprocessors and other digital systems. The reset timeout period is factory-set at 140ms minimum, ensuring that the system has sufficient time to stabilize during a reset event.

With its low supply current of only 17µA (typical), this device is energy-efficient, making it suitable for battery-powered applications. It operates over a wide temperature range of -40°C to +85°C, ensuring reliable performance in diverse operating environments.

For design flexibility, the MAX825MEUK+T comes in a 5-pin SOT-23 package, which is not only space-saving but also easy to integrate into PCB layouts. Its surface-mount design is compatible with automated assembly processes, simplifying manufacturing and reducing assembly costs.

In summary, the Maxim Integrated MAX825MEUK+T supervisory circuit is a versatile, low-power solution that enhances the reliability of microprocessor systems by providing essential monitoring and control functions. Its compact form factor and robust feature set make it an excellent choice for a wide range of applications, from portable devices to complex digital systems.