Maxim Integrated MAX6382XR44D3+T Microprocessor Reset Circuit

The MAX6382XR44D3+T is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant line of defense against power supply issues, ensuring that your system's microprocessor and other sensitive components are protected from improper operations due to dips, surges, and brownouts in the power supply.

This device is specifically engineered to maintain system integrity by monitoring the power supply voltage level. When the monitored voltage drops below the factory-set reset threshold level, the MAX6382XR44D3+T asserts a reset signal. The reset signal remains asserted for a minimum reset timeout period after the voltage rises above the threshold, ensuring the system has adequate time to stabilize. The reset threshold level for this device is precisely set at 4.4V, making it suitable for systems operating around this voltage level.

The MAX6382XR44D3+T comes in a small, 3-pin SC70 package, which is ideal for space-constrained applications. It is also available in a surface-mount package, denoted by the '+T' suffix, which allows for efficient automated assembly. This device is characterized for operation over a wide temperature range, from -40°C to +125°C, making it versatile for various industrial and commercial environments.

One of the key features of this supervisory circuit is its ability to provide a debounced manual reset input. This additional functionality gives system designers the flexibility to incorporate a manual reset feature, allowing operators to initiate a system reset without the need for power cycling.

Overall, the MAX6382XR44D3+T is a reliable and essential component for managing system power-on reset and protecting against voltage anomalies. Its precision voltage monitoring and compact form factor make it an excellent choice for applications such as portable/battery-powered devices, computers, controllers, and intelligent instruments where space is at a premium and consistent operation is critical.

For further details and specifications, the Maxim Integrated datasheet should be consulted to ensure proper integration of the MAX6382XR44D3+T into your design.