ISL6115ACBZ

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ISL6115ACBZ is a hot-swap device that provides levels of protection from unexpected inrush current, short circuits, or overvoltage conditions. This is an easy-to-use, high-accuracy, programmable current limit controller for hot-swap applications in communication and networking systems. This controller works in three stages – an inrush current stage, an overcurrent stage, and an overvoltage stage.

Application Field

ISL6115ACBZ can be used for hot swap applications in data communication, network equipment, cloud/edge/core switch, router and so on. It also applies to applications consisting of multiple power supplies, such as applications that use 12V and 48V input, point-of-load power supplies, and distributed power architectures, which require hot swap capability.

Working Principle

ISL6115ACBZ is a multi-stage protection device that works to provide levels of protection from inrush current, overcurrent, and overvoltage conditions. During startup, the device will limit inrush current to a preset level. Then, it will monitor the output and trip when an overcurrent fault is detected or an overvoltage condition occurs.The inrush current stage works to reduce the high inrush currents seen at startup. This feature limits the amount of current that the external power supply to draw, controlling the rate of voltage rise over time. Once the inrush current threshold is reached, the device will disable its inrush current limit for the remainder of the startup sequence.The overcurrent stage works to protect the system from potentially damaging overcurrent faults. When the output current reaches above the preset threshold, the device will disable the output, protecting the device and downstream components from potential damage. Overcurrent thresholds may be preset through the use of external resistors.The ISL6115ACBZ also provides overvoltage protection. This feature works to protect the system from potential overvoltage conditions, shutting down the power supply when the output voltage reaches above the threshold. This reduces the risk of damage caused by a faulty power supply or voltage spike. The overvoltage threshold may be programmed using external resistors.

Conclusion

In conclusion, ISL6115ACBZ is an excellent hot-swap controller for applications such as data communication, networking, and distributed-power architectures. This device provides levels of protection from overcurrent, inrush current, and overvoltage conditions, making it a dependable source of protection for such applications. It is easy to use and can be programmed with external resistors to tailor the current and voltage thresholds to the application at hand.

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