LTC4229CUFD#TRPBF

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The LTC4229CUFD#TRPBF is a high-side Hot Swap MOSFET controller from Analog Devices. This device is designed for any applications that require a positive, current-limited supply rail. The Hot Swap Controller provides safety to devices that are added or removed from a live bus. It allows current to be safely applied to the system during initial power-up, while eliminating possibility of current spikes when a load is added or removed. This provides a reliable in-rush current limiting, as well as current overshoot protection.

The Hot Swap Controller is an integrated circuit which can be added to existing circuit designs. It regulates the gate voltage of the Input Power MOSFET that is used to power the load, controlling the gate voltage regardless of load conditions. Any AC or DC device or system that requires high-side dc-to-dc switching can use this Hot Swap device.

Typical applications for the LTC4229CUFD#TRPBF include DC powered systems including base stations, automotive and embedded systems, SO-DIMM computers, and battery powered equipment. It can also be used for non-isolated dc-dc converters and power supplies, voltage regulator modules, and power factor correction.

The Hot Swap Controller contains a latch-off fault detection circuit and independent current limiting feature that allow it to be used as a fault protection device to maintain reliable system operation even in overcurrent conditions. This ensures that the system continues to run with high efficiency and minimal disruption in case of unexpected high current events.

The LTC4229CUFD#TRPBF is implemented in a 7-pin SOIC package which is designed for low profile applications. It is rated for operating voltage range of 5V to 22V and is capable of supporting current levels up to 5A. It has several sets of digital inputs which can be used to control and adjust the current limit level.

The Hot Swap Controller uses a clock controlled tracking method to monitor the state of the Output MOSFET, enabling it to perform all of its control functions at the rate of the clock. This allows the Hot Swap Controller to have a fast dynamic response time, providing superior protection against overvoltage and undervoltage conditions, as well as preventing power cycling of the Output MOSFET. The Hot Swap Controller is capable of both smooth startup and shutdown sequences and also provides latch-off protection for both open-load and short-load conditions.

The LTC4229CUFD#TRPBF features a low quiescent current of 2 uA, high efficiency, and fast voltage tracking which make it an ideal choice for any application that requires power supply rail control and monitoring. This Hot Swap Controller is a reliable and versatile device that is capable of providing loop stability and protecting system components from overvoltage and undervoltage events.

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