ISL6152CB

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ISL6152CB Application Field and Working Principle

ISL6152CB, manufactured by Intersil, is a Hot Swap Controller (PMIC) specifically designed to enable the safe insertion and removal of powered circuits into a live system. It is an intelligent Hot Swap controller that provides advanced protection during power cycling or inrush current events that otherwise might damage valuable circuit components or cause system down time.

ISL6152CB monitors voltage, current, and temperature on each Hot Swap circuit, and signals its mother board when a fault is detected. It further protects against over-voltage, over-temperature, over-current, and reverse current conditions. The Hot Swap controller also provides current limit setting and soft-start functions to reduce the inrush current for each of the Hot Swap channels. It is available in a 16-pin SOIC package.

ISL6152CB Working Principle

ISL6152CB is an intelligent Hot Swap controller that can detect a variety of fault conditions, such as over-voltage, over-current, over-temperature and reverse current. When any of these fault conditions are detected, the ISL6152CB will signal its mother board by toggling an interrupt signal. It further provides current limit setting, soft-start and thermal protection functions to reduce the inrush current and temperature of the Hot Swap circuit.

ISL6152CB uses a simple voltage-to-current converter in order to sense the load current. The load current is sensed by monitoring the voltage across an external sense resistor. This sense resistor should be placed in series with the load, to ensure that the same current passes through the resistor as passes through the load. The voltage across this sense resistor is then converted to a current using the voltage-to-current converter. This current is then used to drive the circuitry that controls the semiconductor switch and provide the soft-start and thermal protection functions.

ISL6152CB Application Fields

ISL6152CB is a versatile Hot Swap controller that is suitable for a wide range of applications. Its particularly suited to applications where power sequencing, over-current protection, thermal protection and quick insertion/removal of equipment is required. Its suitable for powering up multiple supplies, and can be used in both AC and DC power systems.

Examples of applications that ISL6152CB can be used in include communications hubs, power over Ethernet (PoE), network-attached storage (NAS), industrial control systems, server hot-swapping systems and network routers.

Conclusion

ISL6152CB from Intersil is an intelligent Hot Swap controller that combines advanced protection such as over-voltage, over-current, over-temperature and reverse current monitoring. It is designed to enable the safe insertion and removal of powered circuits into a live system. Its suitable for a wide range of applications including communications hubs, industrial control systems, server hot-swapping systems and network routers.

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