LTC4229IUFD#TRPBF

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The LTC4229IUFD#TRPBF is a hot-swap power-management integrated circuit (PMIC) typically used for current-limited applications. It provides a safe and controlled start up for high-current applications. The hot-swap controller regulates the inrush current of a live board insertion in high power applications, such as those found in distributed power supplies and industrial power distribution systems.

The LTC4229IUFD#TRPBF is capable of driving a large N-channel MOSFET switch with a maximum continuous current up to 20A. It has an adjustable overcurrent protection (OCP) threshold of up to 17A. It also provides an adjustable power-good (PG) output signal. The PG output can be adjusted between 10uV and 60mV with a programmable supply voltage range of 4.5V – 17V.

The LTC4229IUFD#TRPBF can be used in a variety of applications, from laboratory boards to industrial power supplies. It is suitable for use in both active and passive switch designs, depending on the application. It is commonly used in the following applications:

• Power over Ethernet (PoE)
• Distributed power supply systems
• High current applications
• Power control for hard drives, tablest and phones

The LTC4229IUFD#TRPBF\'s hot-swap controller works by monitoring the input voltage and when it completes the initial current limit cycle, the output MOSFET is enabled, allowing the system to turn-on. The LTC4229IUFD#TRPBF can be used in active or passive systems with low or high output voltage. In active systems, the input voltage is in control of the output voltage, while in passive systems, it is the other way around.

The LTC4229IUFD#TRPBF also provides a safety circuit to prevent a short-circuit or overload condition. An adjustable latch-off limit is set for high current and/or high temperature situations. In these situations, the output MOSFET changes to an off state, disabling the supply voltage. When the critical condition is removed, the output MOSFET returns back to an on state.

The LTC4229IUFD#TRPBF has several features that make it an ideal hot-swap controller. It has adjustable OCP threshold, programmable start-up delay, and adjustable over-temperature interrupt. It also provides an accurate current measurement, low on-resistance, and low power consumption. It is RoHS compliant and is small in size

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