MAX5956AUEE+

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PMIC - Hot Swap Controllers

A hot swap controller is a specialized type of power management integrated circuit (PMIC) designed to protect systems from high-temperature and unstable environments when components are connected or disconnected. In particular, a hot swap controller is designed to dynamically control the addition of electrical power and/or new devices to a power grid during insertion or removal while maintaining a safe level of voltage and current. The MAX5956AUEE+ is a high-performance hot swap controller specifically designed to meet the increasing demands of today’s advanced systems.

Features and Benefits

The MAX5956AUEE+ is a high-performance hot swap controller that offers best-in-class features and benefits:

• Advanced fault management with two levels of fault reporting
• High-accuracy sense resistor current detection
• Integrated 2A internal P-channel driver
• Operates from a 3.3V to 5V supply
• Extremely low current consumption
• Very small 1mm x 1mm WLP package
• Configurable slew-rate control
• Total output current monitoring

Applications

The MAX5956AUEE+ is ideal for hot swap applications in notebook computers, servers, and telecommunications systems. Thanks to its small package and low-power operation, the MAX5956AUEE+ is also suitable for portable battery-powered applications such as cell phones.

Working Principle

The MAX5956AUEE+ is a high-performance hot swap controller that integrates two level fault management. The device provides an accurate current-sense verification input, allowing dynamic control of the insertion and removal of the system power devices. The MAX5956AUEE+ allows for precise monitoring of the total current and power drawn from the power source. The internal 2A MOSFET driver allows for any level of voltage or current overload to be safely managed by momentarily interrupting the output power to the load. The device further safeguards the sensitive components by limiting the rate of inrush current and controlling the slew rate.

The MAX5956AUEE+ also provides numerous protections including an adjustable short-circuit, over-voltage, and thermal protection. In the event of a fault, the MAX5956AUEE+ reports the fault type to an system microcontroller, allowing the system to respond accordingly. The device comes in a wafer level package (WLP) measuring 1mm x 1mm and is ideal for high power density applications.

Conclusion

The MAX5956AUEE+ is a high-performance hot swap controller that provides advanced fault management and extreme current and temperature monitoring. Thanks to its small size and low-power operation, it is suitable for portable and high power-density applications.

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