Maxim Integrated MAX7381AXR106+T Microprocessor Supervisory Circuit

The MAX7381AXR106+T is a highly reliable microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated, a leader in analog and mixed-signal engineering. This compact component is engineered to monitor power supplies in µP and digital systems, providing excellent circuit reliability and low cost by eliminating the need for external components.

Its primary function is to assert a reset signal whenever the VCC supply voltage declines below the factory-set reset threshold level. The reset signal remains asserted for a preset timeout period after VCC has risen above the reset threshold, ensuring the system has sufficient time to stabilize before the processor begins operation. This feature is critical for applications where precise power management is essential, such as in embedded systems, portable devices, and other digital electronics.

The MAX7381AXR106+T comes in a compact, 3-pin SOT-23 package, which is ideal for space-constrained applications. It offers a variety of features that make it a versatile choice for system designers, including:

• A precise factory-set VCC reset threshold to ensure reliable operation.
• A 140 ms minimum power-on reset delay (timeout) that provides a stable system reset.
• Low supply current of only 1.2 µA, making it suitable for battery-operated applications.
• Immunity to short VCC transients, enhancing system robustness.
• Capability to operate over a wide temperature range of -40°C to +125°C, accommodating various environmental conditions.

The MAX7381AXR106+T is also characterized for automotive applications, meaning it has been rigorously tested to meet the stringent requirements of the automotive industry. This makes it an ideal choice for automotive electronics where reliability and performance are non-negotiable.

With its robust feature set and Maxim Integrated's reputation for quality, the MAX7381AXR106+T is a superb choice for designers looking to enhance the reliability and performance of their digital systems, while minimizing power consumption and space usage.