Maxim Integrated MAX6320PUK46BY/V+ Microprocessor Supervisory Circuit

The Maxim Integrated MAX6320PUK46BY/V+ is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected behavior in digital systems. This compact device is a crucial component for managing system power-up, power-down, and brown-out conditions in microprocessor and microcontroller-based applications.

Encased in a space-saving SOT-23 package, the MAX6320PUK46BY/V+ offers a precise monitoring solution for systems that require a 4.63V threshold. It features an active-low, push-pull reset output, which ensures that the connected microprocessor is held in the reset state until the system voltage reaches the stable operating level and remains there for a specified period, guaranteeing a proper system start-up.

The reset output from the MAX6320 remains asserted for a minimum of 140ms (reset timeout period) after V_CC has risen above the reset threshold level, providing ample time for the system to stabilize. Moreover, the device boasts a low supply current of only 5.5µA, making it an energy-efficient choice for portable and battery-operated equipment.

One of the key features of the MAX6320PUK46BY/V+ is its ability to perform with high accuracy, with a reset threshold voltage tolerance of ±1.5% over the entire temperature range of -40°C to +125°C. This precision ensures reliable operation even under extreme environmental conditions, making it suitable for automotive and industrial applications where temperature fluctuations are common.

Additionally, the MAX6320PUK46BY/V+ includes a debounced manual reset input. This feature allows the user to manually initiate a system reset, providing an extra layer of control and security. The device's robust design also includes immunity to short V_CC transients, further enhancing its reliability in unpredictable power environments.

In summary, the Maxim Integrated MAX6320PUK46BY/V+ is a versatile and dependable supervisory circuit that offers tight voltage monitoring with minimal power consumption, making it an excellent choice for safeguarding µP systems across a wide range of applications.