ISL61853AIRZ

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The ISL61853AIRZ is a highly-integrated, Hot Swap Controllers, or HSCs, that offers solutions for allowing safe insertion and removal of a board operating at varying voltages into a live system. It is specifically designed to enable hot-swap boards without the need of manual switches or firmware monitoring. It also provides protection from overvoltages and overcurrents thus delivering system optimization with the lonfEzhou reliable protection in hot-swap applications.

The ISL61853AIRZ integrates an N-channel MOSFET to provide an optimal signal path and to minimize power dissipation in power systems. It is designed for applications where system power and hot swapping board power of up to 25W/6A are present. The device also offers a programmable overvoltage protection threshold that reduces system cost by eliminating the need for external components in a 3.3V/5V system.

The primary application field of the ISL61853AIRZ is in industrial and medical hot-swap applications, such as those found in motherboard and blade server systems. It can be applied in any boards that require hot-plugging capability and require protection. The ISL61853AIRZ also provides circuit protection as a secondary application.

The working principle of the ISL61853AIRZ revolves around its N-channel MOSFET. When a load is plugged into a live system, the ISL61853AIRZ detects a voltage at the load and turns on the N-channel MOSFET. The device then shunts the input side of the system with a series of power sinks and sources, controlling the status of the system. If an overvoltage or overcurrent condition is detected, the device turns off the N-channel MOSFET until the condition is resolved.

The ISL61853AIRZ also offers adjustable overvoltage protection thresholds. This feature allows the user to set a voltage level where the device will automatically disengage the N-channel MOSFET and prevent damage due to excessive voltages. Additionally, the device offers up to 6A of load protection, which allows it to control load current up to 47W.

The ISL61853AIRZ is ideal for hot-swap applications and provides the necessary protection for preventing damage to the board and system due to overvoltage or overcurrent conditions. Its combination of features makes it well suited for industrial, medical, and other hot-swap applications. Its ability to detect and shut off input power, its adjustable overvoltage protection thresholds, and its high load protection of up to 6A make it the ideal choice for hot-swap applications.

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