Maxim Integrated MAX6819UT-T Single/Dual, Low-Voltage, Low-Power µP Supervisory Circuits

The MAX6819UT-T from Maxim Integrated is a highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with 1.8V to 5.0V power supplies.

This supervisory circuit ensures that the µP is only operational when the power supply voltage is within acceptable limits, thus protecting the system from low voltage conditions that can lead to erratic operation. The MAX6819UT-T is particularly suitable for portable and battery-powered applications due to its low power consumption and small footprint.

The device features a precision voltage monitor with a factory-set reset threshold voltage. The reset output is available in both active-low and active-high configurations, ensuring that the MAX6819UT-T can be integrated into a wide variety of system designs without the need for external inverters. The reset output remains valid with VCC as low as 1.2V, which is crucial for low voltage operations.

One of the key features of the MAX6819UT-T is its ultra-low supply current of 1.5µA (typical), which helps to extend battery life in portable applications. This makes it an ideal choice for power-sensitive designs. The device comes in a small SOT23 package, which is excellent for space-constrained applications.

The MAX6819UT-T includes additional functionalities such as a manual reset input, which allows for a system reset to be triggered with an external pushbutton or logic signal. It also has a reset timeout period that can be selected to ensure that the µP has adequate time to initialize after a reset event.

In summary, the Maxim Integrated MAX6819UT-T is a compact, efficient, and reliable solution for voltage monitoring and system reset functions in digital systems. Its low power consumption, small size, and robust feature set make it an excellent choice for safeguarding µP systems across a broad range of applications.

For further technical specifications, application guidance, and support, users can refer to the datasheet and resources provided by Maxim Integrated.