ISL61853OCRZ-T

The ISL61853OCRZ-T is an advanced hot swap controller that provides improved over current protection, on-board precision gate drive, inrush current control, power IOC (Intelligent Over/Under-current Control) protection, as well as 100V fault coupling protection that is ideal for hot swapping applications.

This IC is a flexible, high-performance integrated Hot Swap controller that offers an integrated slew-rate limited inrush current control, over voltage, over load, under voltage and Short to Battery Protection. It can support up to 10 channels of Hot Swap control with an external precision 4-bit D/A converter that provides precise control over the channel protection range and current foldback level. The high-accuracy on-board precision gate drive and integrated Fault Coupling Protection (FCP) allow for safe and reliable Hot Swap operation even in low voltage, high temperature environments.

Application Field

Hot Swap Power Management: The ISL61853OCRZ-T is designed for applications which require Hot Swap power management. Examples of such applications include hot swap systems for distributed computing, redundant power supplies, video walls, broadcast systems and servers. The device also provides protection against jams and over-voltage faults.

Inrush Current Control: The integrated slew-rate limited inrush current control feature helps to protect the system from over-current fault conditions, such as short-circuits or inrush currents. The device also supports up to 10 channels of Hot Swap control with an external 4-bit D/A converter, which allows the user to precisely control the current foldback level.

Power IO Control (PIOC): The integrated Power IO Control (PIOC) feature provides protection against over-temperature, over-voltage, under-voltage, over-current and short-circuit conditions. It is designed to monitor and control up to 10 channels with an external 4-bit D/A converter that provides precise control over the channel protection levels.

Fault Coupling Protection (FCP): The integrated Fault Coupling Protection (FCP) feature provides protection against ESD, over-voltage, over-current and brown-out conditions. It is designed to monitor the connected power line and disconnect the load in the event of a fault. FCP is ideal for hot-swap systems which require reliable fault protection and fast protection reaction time.

Working Principle

The ISL61853OCRZ-T is an advanced Hot Swap controller that provides improved over current protection and on-board precision gate drive. The integrated slew-rate limited inrush current control feature helps to protect the system from over-current fault conditions, such as short-circuits or inrush currents. The device also supports up to 10 channels of Hot Swap control with an external 4-bit D/A converter, which allows the user to precisely control the current foldback level.

The integrated PIOC (Power IO Control) feature provides protection against over-temperature, over-voltage, under-voltage, over-current and short-circuit conditions. It is designed to monitor and control up to 10 channels with an external 4-bit D/A converter that provides precise control over the channel protection levels.

The integrated FCP (Fault Coupling Protection) feature provides protection against ESD, over-voltage, over-current and brown-out conditions. It is designed to monitor the connected power line and disconnect the load in the event of a fault. FCP is ideal for hot-swap systems which require reliable fault protection and fast protection reaction time.

The ISL61853OCRZ-T also features an integrated circuit rupture FET (CRFET), which helps to disconnect power to the protected load when an over-voltage or over-current fault is detected. The integrated CRFET also helps to protect sensitive power devices from electrostatic discharge damage.

In conclusion, the ISL61853OCRZ-T is a high-performance Hot Swap controller which provides enhanced protection against short-circuits, inrush currents and over-voltage/over-current conditions. Its integrated gate drive, slew-rate control, power IOC and fault coupling protection features help to provide reliable and robust protection against failure and damage. The device also supports up to 10 channels of Hot Swap control with an external 4-bit D/A converter, which allows the user to precisely control the current foldback level.