LTC4217IFE#PBF

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Power management integrated circuits (PMICs) are main elements of modern electronics and are often found in smartphone power systems. More specifically, hot-swap controllers are an important part of any system requiring an unsteady power source. The Fairchild/ON Semiconductor LTC4217IFE#PBF is a multifunctional high-power hot-swap controller IC from the company\'s OEM Hot Swap IC product line. With its advanced protection capabilities, current monitoring and various fault-protected control functions, the LTC4217IFE#PBF can be used in a variety of applications.

The LTC4217IFE#PBF has six integral power switches, four independent voltage and current threshold sources, a temperature monitor and an overvoltage monitor. This makes the IC extremely versatile and efficient. Additionally, the LTC4217IFE#PBF has two separate current-limiting stages that offer protection against inrush current, inductive and capacitive loads, overvoltage or short circuits. It also features self-protection of the internal high-side switches during power-up, power-down and fault conditions.

The LTC4217IFE#PBF comes in a small 15-lead, 4 mm QFN package. It has a typical supply range of 4.5 V to 17 V and operates over a wide ambient temperature range of -40°C to 125°C.

The most common applications for the LTC4217IFE#PBF are servers, storage systems and network, audio, disk and communications equipment. These applications often require the delivery of uninterrupted power and the ability to detect unexpected events and respond accordingly. Moreover, the lTC4217IFE#PBF\'s wide range of advanced protection capabilities provides design engineers with the flexibility to create robust and reliable systems.

The working principle of the LTC4217IFE#PBF is based on the concept of hot-swapping. Hot-swapping is a method of connecting and disconnecting power cables or circuits without turning off the power. Hot-swapping is used in many industrial and mobile applications, such as computer equipment, automotive and telecommunication systems. Generally speaking, hot-swapping requires two elements: a power management integrated circuit and a power cable connected to the load device.

The LTC4217IFE#PBF includes hot-swapping functionality as part of its design. The IC monitors the power supply voltage and current as well as the status of the load device. When an event indicating a fault occurs, the IC will shut off power to the load device, protecting it from damage. Additionally, the IC provides a voltage-droop indication that can be used to adjust the output current of the supply.

In summary, the LTC4217IFE#PBF is a powerful and versatile multifunctional high-power hot-swap controller IC from Fairchild/ON Semiconductor. It offers system designers a wide array of protections, current monitoring and fault-protected control functions that can be used to create reliable and robust power supply systems. Furthermore, it\'s small size and wide ambient temperature range make it an ideal candidate for many applications.

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