TPS2458RHBR

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The TPS2458RHBR is a hot swap controller integrated circuit (IC) that is used to provide system power supply protection. It is part of the Texas Instruments Power Management Integrated Circuit (PMIC) family. This PMIC is intended for server and data storage applications, and is used to enable hot swap functionality. Hot Swap controllers provide a robust and safe power delivery mechanism in systems with multiple power supplies. They allow hot plugging of a supply voltage, while controlling inrush current, maximum voltage, overvoltage and power cycling limits.

The TPS2458RHBR is designed to be used in high reliability, mission critical applications. It is capable of controlling the full power supply sequence for a 3.3V application and also supports a wide input voltage range from 9V to 28V. The device consists of a power switch, a current limiter and an overvoltage protection circuit. The power switch controls the power flow, allowing only current that does not exceed the set current limit to flow into the system. The current limit is adjustable from 1A to 8A. The overvoltage protection circuit protects the system from a voltage surge above the set limit.

The TPS2458RHBR is a highly integrated device with an advanced control loop that provides a fast and reliable response. It includes two comparators that monitor the inrush current and outputs of the supply voltage. These comparators monitor the voltage of both the input and the output of the supply. When the input voltage exceeds the set limit, the comparator detects it, and triggers an overvoltage protection circuit. This circuit will then shut down or limit the power supply.

The device also includes two digital outputs: a power good signal, which indicates that the supply voltage has stabilized, and an inhibit signal, which allows the system to detect a voltage change before it occurs. These outputs can be used to indicate the status of the power supply and to control downstream system logic.

The TPS2458RHBR is a cost effective and reliable hot swap controller and is intended for use in critical applications such as data centers, telecommunications and medical equipment. It is capable of controlling inrush current, short-circuit and overvoltage conditions, and is highly integrated with advanced features such as digital outputs and thermal shutdown.

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