Maxim Integrated MAX5939EESA+ Hot-Swap Controllers

The MAX5939EESA+ is a state-of-the-art hot-swap controller designed by Maxim Integrated to provide reliable power management and circuit protection in a variety of server and telecom applications. This advanced component is engineered to allow for the safe insertion and removal of circuit boards from live backplanes, minimizing the risk of damage caused by current surges or faulty insertion.

Encased in a compact 8-pin SOIC package, the MAX5939EESA+ is optimized for space-constrained environments while delivering robust performance. It is specifically tailored for systems with supply voltages ranging from -48V to -80V, making it an ideal choice for negative voltage hot-swap applications.

Key Features:

• Integrated Fault Protection: The device includes overcurrent and overtemperature protection features that safeguard both the motherboard and the card being inserted. This ensures a high level of system reliability and longevity.
• Adjustable Current Limit: Designers can set the current limit threshold according to their specific application needs, offering flexibility and precision in managing power requirements.
• Undervoltage Lockout (UVLO): The UVLO function ensures that the hot-swap controller remains off if the supply voltage is not within the acceptable range, preventing potential damage from under-voltage conditions.
• Charge Pump Circuitry: The built-in charge pump allows for the control of external N-channel MOSFETs without the need for additional external components, simplifying design and saving board space.
• Active-High Enable Input: An active-high enable input provides simple interfacing to system control logic, allowing for seamless integration into a variety of designs.

The MAX5939EESA+ is not just a protective device; it is also designed with an eye on ease of use. It has a simple and intuitive interface that requires minimal external components, which can help reduce overall design complexity and time to market for new products.

Whether you're developing power distribution systems, servers, or telecommunications equipment, the MAX5939EESA+ offers a reliable and efficient solution for hot-swapping circuit boards with negative supply voltages, ensuring continuous operation and system integrity.