Maxim Integrated MAX6804US46D2 Microprocessor Reset Circuit

The Maxim Integrated MAX6804US46D2 is a compact, highly-reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of protection to your digital devices by ensuring that the µP boots up in a predictable state every time. This component is essential for applications where consistent and reliable system behavior is critical upon both power-up and during operation.

With a preset threshold voltage of 4.63V, the MAX6804US46D2 is well-suited for 5V-powered systems. It maintains system integrity by monitoring the power supply voltage and keeping the µP reset active for a minimum of 140ms after VCC has risen above the reset threshold level. This reset timeout ensures that the µP has ample time to initialize and stabilize before beginning operation, thereby preventing any erratic behavior due to power supply instabilities or transient conditions.

One of the key features of the MAX6804US46D2 is its low power consumption. Drawing a quiescent current of only 1.2µA, this device is optimal for power-sensitive applications, including portable and battery-operated equipment. Its small SOT143 package makes it an excellent choice for space-constrained applications, without compromising on performance or reliability.

The device also includes a manual reset input, allowing for a system reset to be triggered externally at any time. This feature provides an additional layer of control and safety, enabling the system to be restarted manually in the event of software lock-up or other faults.

Overall, the Maxim Integrated MAX6804US46D2 is a robust reset circuit that provides high accuracy, low power consumption, and small footprint, making it an ideal choice for a wide range of applications, from consumer electronics to industrial control systems. Its ability to ensure a stable and reliable startup makes it a valuable component in any system requiring high reliability and consistent performance.