LTC4054XES5-4.2#TRPBF

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PMIC - Battery Chargers are devices used to charge batteries or to power devices when there is no mains power supply available. The most common types of PMIC - Battery Chargers are Li-Ion, Ni-Mh, Lead Acid, and other chemistries. One type of PMIC - Battery Chargers is the LTC4054XES5-4.2#TRPBF.

The LTC4054XES5-4.2#TRPBF is a battery charger circuit designed for charging four-cell Lithium-Ion/Polymer Batteries. It uses an internal switching regulator to provide a charge current up to 4.2A, and can be programmed to either trickle charge or fast charge. It also has a discharge function to discharge a battery while monitoring its voltage. This allows the user to maintain the battery\'s capacity and cycle life.

The LTC4054XES5-4.2#TRPBF has a wide range of applications due to its low stand-by power consumption, low noise during charge/discharge process, and its wide input voltage range. It can be used in mobile phones, digital cameras, and other portable devices that use Lithium-Ion/Polymer batteries. It can also be used in devices such as laptops, medical devices, and electric vehicles, where accurate and reliable battery charging is essential.

The LTC4054XES5-4.2#TRPBF is composed of two main integrated circuits: the charge pump controller (LTC4054) and the MOSFET controller (LTCMOS‑17V). The charge pump controller is responsible for controlling the overall charge process, providing protection features, and adjusting the charge current. The MOSFET controller is responsible for supplying the charge current to the battery. Both circuits are connected to each other and to an external power supply through separate pins. The LTCMOS-17V provides an adjustable charge current of up to 4.2A.

The overall working principle of the LTC4054XES5-4.2#TRPBF can be summarized as follows. The integrated ICs sense the battery’s voltage and current and will adjust the charge current accordingly. The charge controller will provide protection against overcharging, overheating, and short-circuiting. When the battery reaches its full charge, the charge controller will shut off the charge current, preventing the battery from being overcharged. Finally, when the battery voltage drops below a certain level, the MOSFET controller will automatically initiate a discharge cycle.

In summary, the LTC4054XES5-4.2#TRPBF is a robust and reliable battery charger circuit designed to meet the needs of various portable applications. It is suitable for Lithium-Ion/Polymer batteries and provides a wide array of protection features to ensure safe operation. With its wide input voltage range, low stand-by power consumption, and low noise charge/discharge process, the LTC4054XES5-4.2#TRPBF is an excellent choice for mobile products, digital cameras and other portable devices.

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