TPS2320IPWG4

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The TPS2320IPWG4 is a controller in the Power Management Integrated Circuit (PMIC)- Hot Swap Controller family. It’s designed to provide robust, automatic control for hot swapping (the process of safely removing and inserting power to a system without powering down the system or any of its components) of boards from live systems without causing any disruption to the system or its components. The TPS2320IPWG4 is an efficient, cost-effective solution for hot swapping with protection and control functionalities built for medium to large current applications with high-current FETs.

The TPS2320IPWG4\'s application fields includes products that need to hot swap boards in and out of systems. Examples of these products include network appliances, switches, routers, and medical equipment. The device provides protection and conditioning functions such as over current, over-temperature and under-voltage protection. It also provides reverse current and floating FET protection, which prevents non-powered boards from affecting the host system in case of failure. Its self-biased FET also eliminates the need for external bias voltage.

The TPS2320IPWG4 offers protection and control features for both high and low voltage sides with adjustable current limit for over-current protection and adjustable delay time for over-temperature protection. The thermal power-shutdown comparator monitors the device\'s temperature and puts the device into the audio-off state or shuts down the device if the temperature exceeds a specific threshold. The soft-start function ensures a smooth transition between the insertion and removal of the target board to avoid in-rush current and overshoot.

The TPS2320IPWG4 offers two operating modes, the manual mode and the auto mode. The manual mode allows the user to control the start-up and shut-down of the hot swap using an external control signal, while the auto mode activates the hot swap operations automatically when a board is inserted and removed from the system.

The TPS2320IPWG4\'s working principle revolves around the protection of the electronics from the shock of the insertion and removal of the target board. It is designed with overcurrent and over-temperature protection features to display PC-board status and time-delay circuits for maximum part utilization. The controller has a built-in power-supply-voltage supervisor to monitor the board\'s power-supply voltage and will shut down the board if the voltage falls below a predetermined level.

The TPS2320IPWG4 contains a number of configurable features which can be adjusted as specific to the application allowing it to be extremely flexible and versatile. With adjustable current limit and delay time, the TPS2320IPWG4 can be adapted to almost any application. With its wide range of features and low cost, it is ideal for products where hot swapping must be supported.

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