TPS25940ARVCT Integrated Circuits (ICs)

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Power management integrated circuits (PMICs) serve an important role in today’s increasingly complex electronics. Hot swap controllers are a specialized type of component found in many power and voltage regulation-related applications, from smart phones to cloud servers and data centers. The TPS25940ARVCT PMIC hot swap controller from Texas Instruments is an example of a component designed to provide comprehensive protection against thermal, over-current, and under-voltage events.

Overview of the TPS25940ARVCT PMIC Hot Swap Controller

The TPS25940ARVCT is a 6-channel hot swap controller designed to provide hot swapping of voltage supplies in applications that require fault protection. This chip features three independent hot swap controllers, each with two complete channels. It also has integrated rail tracking and adjustable soft-start delay across all channels to ensure compatibility with a wide range of rail configurations, along with a slew rate adjustment feature to reduce system-level inrush current.

Other innovative features of the TPS25940ARVCT include two integrated stop switches that prevent any kind of abnormal current flow through the other channels, thus ensuring system protection against unexpected hot plugging events. Additionally, it features integrated drop-detection and thermal shut-down to prevent over-current and over-temperature situations, respectively. Finally, it has an adjustable voltage and current ramp rate to reduce system-level inrush current, and adjustable input and output voltages.

Application Fields and Working Principle of the TPS25940ARVCT PMIC Hot Swap Controller

The TPS25940ARVCT PMIC hot swap controller is designed for a wide range of applications, including communication and networking equipment, servers, consumer goods, industrial sensors, medical devices, and general electrical engineering equipment. In data centers, for example, the chip enables fast point-to-point replacement of equipment without requiring a full system power down, thus increasing system uptime. In consumer goods, the controller enables protection against voltage surges and over temperature conditions.

The TPS25940ARVCT PMIC hot swap controller works by controlling the voltage supply to a system. It does this by monitoring the voltage and current between its two channels, and then regulating the voltage flow through a set of switching circuits. When a voltage or current exceeding a predetermined value is detected, the controller shuts down the voltage flow by deactivating the switching circuits. This ensures that no excessive current passes through the system and that the system temperature remains within acceptable limits.

In addition to providing basic protection against over-current and over-temperature events, the TPS25940ARVCT PMIC hot swap controller also integrates rail-tracking and adjustable soft-start delay across all channels, as well as adjustable drop detection, output voltage, and current ramp rate. This adjusts the amount of power being supplied to the system, ensuring that it receives just enough voltage to operate its components without becoming over-stressed.

Conclusion

The Texas Instruments TPS25940ARVCT PMIC hot swap controller is a versatile chip that has become a go-to solution for numerous power and voltage regulation-related applications. With its comprehensive protection against over-current, over-temperature, and under-voltage events, coupled with adjustable rail-tracking, the TPS25940ARVCT provides the perfect solution for reliable and efficient power delivery.

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