Maxim Integrated MAX6337US22D3 Microprocessor Supervisory Circuit

The MAX6337US22D3 is a highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides a significant level of system reliability and accuracy required for controlling system reset functions. This precision circuit is specifically engineered to maintain system integrity through monitoring and management of the power supply and system voltage levels.

One of the key features of the MAX6337US22D3 is its ability to assert a reset signal whenever the VCC supply voltage falls below a preset threshold, ensuring that the µP resets cleanly during power-up, power-down, and brownout conditions. The reset output remains asserted for a preset timeout period after VCC has risen above the reset threshold level, providing a guaranteed reset signal duration that is immune to short VCC transients.

With a factory-trimmed reset threshold voltage of 2.2V, the MAX6337US22D3 is suitable for low voltage applications. It has a wide operating voltage range, typically from 1.2V to 5.5V, making it versatile for various digital and µP systems. The low supply current of typically 5µA makes this device an excellent choice for portable and battery-operated equipment.

The MAX6337US22D3 is offered in a compact SOT-323 package, which is ideal for space-constrained applications. Its small footprint does not compromise its performance and reliability, which are hallmarks of Maxim Integrated's products. The device also includes an active-low manual reset input, allowing for a system reset to be initiated externally by a push-button or other control logic.

Overall, the MAX6337US22D3 from Maxim Integrated is an essential component for system designers who require a reliable and precise supervisory circuit to enhance the stability and safety of their microprocessor-based systems. Its combination of low power consumption, small packaging, and robust reset functionalities make it an excellent choice for a wide range of applications, from consumer electronics to industrial controls.