UCC39161DP

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PMIC - Hot Swap Controllers have become increasingly popular and are used in a variety of industrial applications. The UCC39161DP is a hot swap controller designed to provide an adjustable, high-performance hot swap solution for driving up to 3A load switches in applications such as power supplies and embedded systems. This device offers tight current regulation, short circuit protection, overvoltage protection, and thermal regulation.

The UCC39161DP provides a wide adjustable output voltage range (1.2V to 5.5V) that can be programmed via an external resistor divider. This allows the user to optimize the system efficiency and minimize power dissipation. The device also features an adjustable timeout feature which maintains the regulated output voltage for a predetermined amount of time. This feature helps avoid dynamic load switch on/off cycling and improves system reliability.

The UCC39161DP supports current regulation, short circuit protection, and overvoltage protection. The current regulation loop is designed to limit the maximum current through the load switch, preventing it from becoming overloaded. The short circuit protection monitors the current flow and will disable the load switch if the current exceeds a certain threshold. The overvoltage protection will automatically shut down the load switch if the output voltage exceeds the maximum set point. A thermal regulation feature monitors the power supply temperature and will shut down the output in the event of a temperature spike.

The UCC39161DP also features low power consumption mode, which reduces its total active power consumption in quiescent mode. This is important for applications where thermal or power management constraints are present. The device utilizes a soft start feature which ramps up the voltage slowly (300 ms typical) to minimize inrush current. This limits the stress on the power components and increases system reliability.

The UCC39161DP is an ideal solution for high power applications where hot swap protection and current limiting are necessary. The adjustable output voltage and timeout feature make the device suitable for many different applications. The short circuit protection, overvoltage protection and thermal regulation ensure that the load switch is protected against any damage or failure. The low power consumption, soft start feature and thermal regulation make the device an attractive choice for embedded and other power sensitive applications.

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