LTC4314CUDC#TRPBF

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LTC4314CUDC#TRPBF, a member of the Interface - Signal Buffers, Repeaters, Splitters family, is a hot-swap controller which allows you to safely switch or connect hot-swap printed circuit boards (PCBs). It is used to isolate the power supply pins on a PCB from the hot-swapped modules. This device is ideal for providing power to hot-swapped connection when main power is applied and disconnected.

This device combines an enhanced hot-swap current limit circuit, plus a thermal shutdown circuit with a standard low side power switch. It monitors the supply voltage, ensuring that current is not drawn until the voltage reaches a safe level. It also features a fault status output and a current sense output. It provides several protection features including programmable current limit, undervoltage and overvoltage lockout, and thermal shutdown. These features ensure that the hot-swapped PCBs are protected from damage.

The LTC4314CUDC#TRPBF consists of a main hot-swap controller, an overvoltage/undervoltage monitor, and a power switch. The main controller consists of a voltage comparator with a programmable UVLO threshold and an open-drain POK output. This output indicates when the input voltage is above the UVLO threshold. When an overvoltage is detected, the controller shuts down the power switch, protecting the hot-swapped module. The main controller also includes an adjustable current limit circuit, a programmable debounce, a fault detection circuit, and a thermal Shutdown. The current limit value is detected by an external sense resistor and is adjustable with a voltage reference. The overvoltage/undervoltage monitor provides a logic output when an overvoltage or undervoltage condition is detected. The power switch includes a PMOS FET which allows the output of the device to be pulsed on and off, allowing the user to control the load.

The LTC4314CUDC#TRPBF features short-circuit, overvoltage, and undervoltage protection, as well as thermal shutdown. The device is designed to be used in systems with hot-swapped components, providing protection from damage due to shorts, overvoltages, and disconnection of the hot-swapped components. The device can be used in implementations where the individual loading of the hot-swapped components must be controlled. By using the adjustable current limit and the overvoltage/undervoltage monitors, the device provides additional protection for the hot-swapped components.

The LTC4314CUDC#TRPBF is designed to provide a safe, reliable and robust hot-swap control system. It provides protection from overvoltage, undervoltage and short-circuit conditions, while allowing the user to control the load current. The device is easy-to-use, requires minimal parts, and can be implemented quickly and easily, making it a great solution for Interface - Signal Buffers, Repeaters, Splitters solutions.

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