TPS2420RSAR

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PMIC stands for power management integrated circuit. Hot swap controllers, as a kind of such IC, are specialized devices used in applications where power supplies must be inserted while they are already active. The TPS2420RSAR is a hot swap controller integrated circuit, known as a Green Power Hot Swap Controller. It is designed to enable the hot plugging of a power supply into an active bus.

The TPS2420RSAR hot swap controller is used in applications where two rails must be powered sequencing, isolation, and fault protection must be in place. It is well matched for applications where the load power management is complex, including communication, data streaming, and distributed systems. This part is also useful for applications requiring low shutdown current and dynamic control of delay times. Thanks to its advanced protection circuitry, the TPS2420RSAR prevents damage from harmful surges.

The TPS2420RSAR uses a single switched capacitor for voltage rail sequencing. This allows for fast and accurate start-up of multiple voltage rails. It also helps minimize the delay time between the application of power and the detection of a valid power supply. The part also has built-in fault protection that prevents back feeding of regulated rail power to the power supply and helps ensure safe hot plugging.

The working principle of the TPS2420RSAR is simple and effective. After applying power to the part, it automatically switches on the two rails sequentially. When the voltage of either rail exceeds the over-voltage threshold, the TPS2420RSAR immediately shuts down the rail output to protect the system from any damage. It also has built-in over-current and short-circuit protection to ensure safe hot plugging and prevent instantaneous inrush. Additionally, the part is capable of sensing the presence of a valid power supply, so it can accurately detect the voltage and current levels of the power supply and the rails.

The TPS2420RSAR hot swap controller is ideal for a wide range of applications, including server and communication platforms, data streaming, distributed systems, and other applications requiring a reliable power source and protection against harmful surges. With its fast and accurate voltage rail sequencing, fault protection, and low shutdown current, this part is well suited for applications where the power supply must be constantly monitored and controlled.

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