ISL61853GCRZ

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PMIC, also known as Power Management ICs, are used in virtually every electronic system. One particular class of PMICs, known as Hot Swap Controllers, are used to provide power supply protection and reliable switching of multiple supplies. The ISL61853GCRZ is a Hot Swap Controller designed to provide safe power sequencing, current limiting, and inrush current control to protect system devices and the power source.

Overview of the ISL61853GCRZ

The ISL61853GCRZ is an integrated Hot Swap Controller from Intersil. This device works from a single +12V supply and provides up to 10A of continuous power, with peak current up to 30A for short pulse applications. The device includes built-in voltage and current limiting, short-circuit protection, power-on reset, and soft-start. The ISL61853GCRZ can be used with both negative and positive logic control systems.

ISL61853GCRZ Application Fields

The ISL61853GCRZ is designed to be used in applications requiring a number of power sources to be switched in a particular order. This could range from a home entertainment system, where multiple power supplies need to be activated and isolated in a particular order; to industrial-level equipment, where several supplies must be switched sequentially in order to prevent power supply damage. The device can be used in any application where multiple power supplies need to be switched safely and reliably.

ISL61853GCRZ Working Principle

The ISL61853GCRZ is a monolithic MOSFET-based Hot Swap Controller. The device uses two integrated MOSFETs to switch power on and off. The switching is done in an optimized manner to minimize power dissipation, while enabling smooth and reliable switching.

The device also provides power sequencing, current limiting, and inrush current control. The power sequencing ensures that the power supplies are switched in the correct sequence, while the current limiting feature limits the current draw to ensure that the system is not damaged. The inrush current control prevents voltage spikes and current surges that could potentially damage the system.

The ISL61853GCRZ includes additional features such as an under-voltage lockout (UVLO) to protect the power source from over-discharge, and an over-current protection (OCP) to protect the device from overloads and short-circuits. The device also includes an internal reference voltage and temperature compensation which provides accurate current control even with changes in ambient conditions.

Conclusion

The ISL61853GCRZ Hot Swap Controller from Intersil provides a reliable and efficient way to switch multiple power sources. The device includes several features such as power sequencing, current limiting, inrush current control, over-temperature, UVLO and OCP protection, which ensure the safe and reliable operation of the system. This device can be used in a wide range of application areas, such as home entertainment systems, industrial equipment, and automotive systems.

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