TPS2391DGKR

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The TPS2391DGKR is a versatile and accurate single-channel Hot Swap controller with integrated driver which allows safe system insertion and removal of live cards into modular systems. This device is typically used to protect network, communications and computing systems from damage caused by the insertion and removal of powered cards from live systems.

As a Hot Swap controller, the TPS2391DGKR has an output that is controlled by a power-good signal and is suitable for applications operating in the voltage range from 1.8 to 36 V. The device is powered using an on-board power supply that accepts an input range from 3.1 to 36 V. The TPS2391DGKR\'s output is also protected from overcurrent and overvoltage, with an adjustable current limit function.

As firstly mentioned, the TPS2391DGKR is a Hot Swap controller and it has two main functions: firstly, to protect downstream components from the insertion or removal of powered cards, and secondly, to provide controlled power to the inserted components. The Hot Swap controller accomplishes this by managing the inrush current, monitoring for an overcurrent condition, and limiting the voltage at its output.

The working principle of the TPS2391DGKR is based on the concept of controlling and limiting the current flow before and after the insertion of the powered card. The device features an on-board current sense circuit, which allows it to accurately detect the current flowing through the circuit. When the device detects current higher than the set current limit, it automatically limits the output current, which prevents any downstream damage.

The TPS2391DGKR also features a power good signal output that allows the system to monitor the status of the Hot Swap controller. The power good signal will be driven high or low depending on the condition of the downstream components. The device also has an adjustable thermal shutdown temperature, which helps to further protect the device and its connected components.

Overall, the TPS2391DGKR is a very versatile Hot Swap controller that is used in a wide range of applications. It is ideal for use in telecom, industrial, and medical applications in which powered cards must be inserted and removed from live systems. Its on-board current sense circuit, power good monitoring, and adjustable current limit allow the device to provide safe and reliable power management in these systems.

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