ISL6161CBZA

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PMIC - Hot Swap Controllers serve a wide variety of befits in many electronics devices. ISL6161CBZA is a PMIC hot swap controller designed to control inrush current into a circuit protecting it from overload damage. This article will discuss the application fields and working principles of ISL6161CBZA.

Application Field of ISL6161CBZA

ISL6161CBZA is widely used in the desktop, server, and storage systems, and medical, automotive, telecom, and datacom applications. As a field proven hot swap controller, ISL6161CBZA provides a great deal of system design flexibility, allowing designers to select the device that fits their particular application. This PMIC hot swap controller is widely used to prevent overvoltage situations, power system failure, and supply drops due to inrush current.

ISL6161CBZA can be used in a variety of power systems, including power button or relay switching, powering up a device or system from standby mode, hot-plugging of PCIe cards, MP3 players, digital cameras, and other portable electronics. ISL6161CBZA also provides protection against voltage transients, surge currents, and overvoltage. The device is even well-suited for powering up multiple devices from a single power input with known inrush currents.

Working Principle of ISL6161CBZA

ISL6161CBZA operates the analog circuit to provide safe and reliable power on/off sequencing and current limiting. The device is based on charge pump architecture, and it uses an external gate driver to control the external MOSFET that performs the power on/off sequencing. ISL6161CBZA also features a precision programmable current limit, which is set by an external resistor.

When an input voltage is applied to the input of the device, it will turn the external MOSFET on. This allows a safe power distribution to the downstream circuit, and it also allows for precision current limiting and overvoltage protection. Once the input voltage is removed, the device will turn off the external MOSFET, which will cause the downstream circuit to be isolated from the rest of the circuit, thus protecting the device from any potential damage due to unexpected power surges.

ISL6161CBZA is able to provide a comprehensive protection against voltage transients and surge currents. Compared to many other hot-swap controller, it is able to perform load-switching at a much lower voltage while providing superior current limiting performance, making it an ideal choice for hot swap applications.

Conclusion

ISL6161CBZA is an advanced hot-swap controller that provides a comprehensive protection against voltage transients and surge currents, as well as provides a safe power on and off for the downstream circuit. It is suitable for a variety of power systems, including power button or relay switching, powering up a device or system from standby mode, hot-plugging of PCIe cards, MP3 players, digital cameras, and other portable electronics. Furthermore, it comes with a precision programmable current limit, which can be set by an external resistor.

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