ISL6140IB

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ISL6140IB is a hot swap controller designed for powering applications where high input voltage spikes and adjustments to output current is required. The device utilizes a simple power stage, consisting of a MOSFET and charge pump circuitry, to minimize external component count. It includes overvoltage and reverse current protections to further protect the load and hot swap. In addition, ISL6140IB also supports inrush current limit and restart logic in order to limit inrush currents during plug-in and restart, when overvoltage or reverse current condition is cleared.

The ISL6140IB is optimized for use in wide input range applications, with input voltage ratings ranging from 3V to 24V and output voltage ratings up to 15V. It has a wide load voltage range, making it suitable for powering both low and high power loads, such as processor cores and memory modules. The device is also designed for high power dissipation applications, with a maximum power dissipation of 500mW and low output current slew rate.

The ISL6140IB is equipped with a built-in overvoltage protection (OVP) threshold at 10V. During operation, the device monitors the input voltage and trips the OVP when the input voltage exceeds its threshold. This threshold is set by the selection of external R1, R2 and R3 current setting resistors. In addition, the device also features a reverse current limitation protection (RCL) which trips during reverse current conditions. The RCL threshold is also determined by the setting of the external resistor network.

Other features of the ISL6140IB include hot-swap control, inrush current limit and restart logic, adjustable output current and short circuit protection. The hot-swap control maintains a constant output voltage despite varying input voltage or load conditions. The device also features adjustable output current, controlled by the setting of external resistor network, and short-circuit protection which senses output current above the set limit and shuts down the device temporarily to protect the load.

In summary, the ISL6140IB is a hot swap controller designed for powering applications where high input voltage spikes and adjustments to output current is required. The device offers high efficiency and low power dissipation, and also features overvoltage and reverse current protection, hot-swap control, inrush current limit and restart logic, adjustable output current and short circuit protection.

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