Maxim Integrated MAX6314US46D3 Microprocessor Reset Circuit

The Maxim Integrated MAX6314US46D3 is a compact, highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a crucial function by ensuring that the µP and its peripherals are reset properly during power-up, power-down, or brown-out conditions. This tiny component plays a big role in maintaining the integrity of the system by preventing code execution errors and data corruption.

One of the standout features of the MAX6314US46D3 is its factory-trimmed reset threshold voltage. This device is set to trigger a reset signal when the V<sub>CC drops below 4.63V, ensuring compatible systems are protected from undervoltage conditions. Once activated, the reset output remains low for a minimum of 140ms (typical) after V<sub>CC has risen above the reset threshold, providing a proper reset to the µP during power-up.

The MAX6314 series is known for its low power consumption, typically drawing only 1.5µA of supply current. This makes it an ideal choice for portable and battery-operated equipment where power efficiency is critical. Moreover, the MAX6314US46D3 operates over a wide voltage range of 1V to 5.5V, providing versatile applications across various digital systems.

The device comes in a compact SOT-143 package, which is highly suited for space-constrained applications. Its small footprint allows for integration into system designs without requiring significant board space. Furthermore, the MAX6314US46D3 offers an active-low, push-pull reset output, which is compatible with most microprocessor systems and can directly interface with a µP reset input without additional components.

For reliability and performance, the MAX6314US46D3 is specified over the extended industrial temperature range of -40°C to +85°C, making it robust enough to operate in harsh environments. This feature, combined with its built-in immunity to short V<sub>CC transients, ensures that the device provides a stable and reliable performance, making it an essential component for mission-critical applications.

In summary, the Maxim Integrated MAX6314US46D3 is a high-quality, low-power µP supervisory circuit that provides secure and reliable monitoring of system power supplies, ideal for a wide range of digital applications.