Maxim Integrated MAX6380UR37+T Microprocessor Reset Circuits

The MAX6380UR37+T is a high-quality microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant level of system reliability and accuracy required in critical electronic applications. This tiny device ensures that the µP boots up in a known state every time the system is powered on, by asserting a reset signal whenever the VCC supply voltage falls below a preset threshold.

With a factory-calibrated threshold voltage of 3.7V, the MAX6380UR37+T is tailored to manage power systems that operate around this voltage level. The precision voltage monitoring feature helps to prevent system errors and data corruption caused by inadequate power supply levels. The device boasts an impressive low supply current of only 1.5µA, making it an excellent choice for power-sensitive applications.

The MAX6380UR37+T comes in a compact SOT-23 package, which is ideal for space-constrained applications. It is available in a tape and reel format, denoted by the "+T" suffix, which facilitates automated manufacturing processes. The device's active-low open-drain reset output ensures compatibility with a variety of digital systems, providing a versatile solution for different µP configurations.

Additional features of the MAX6380UR37+T include a manual reset capability, allowing the system to be reset without cycling the power. It also has a debounced manual reset input, which prevents false triggering due to spurious noise. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, ensuring the µP has adequate time to initialize.

Designed with the needs of modern electronics in mind, the MAX6380UR37+T is a reliable and efficient solution for system management. Its high accuracy, low power consumption, and small form factor make it a popular choice for applications such as portable/battery-powered equipment, computers, controllers, and intelligent instruments.

Overall, the Maxim Integrated MAX6380UR37+T provides designers with a simple and robust method to enhance system reliability through effective power monitoring and control.