LT3651EUHE-4.1

Series:	*
Packaging:	Tube
Part Status:	Obsolete
Package / Case:	36-WFQFN Exposed Pad
Supplier Device Package:	36-QFN (5x6)

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LT3651EUHE-4.1 is a highly efficient, high performance and low noise power management integrated circuit (PMIC), which is especially available in automotive market. It is specifically designed to provide a safe, efficient and reliable power supply for rechargeable battery applications, such as passenger cars, electric vehicles and industrial electronic applications.

Battery Chargers

LT3651EUHE-4.1 is a battery charger, capable of charging a lithium-ion/polymer battery and/or a lead acid battery, via two separate independent channels. The two channels consist of different cell voltages and current ratings, suitable for charging a range of batteries.The charger can be powered by an external DC voltage, such as the 12V or 24V power supply normally used in the automotive market. The charger is protected against overload, overvoltage and over temperature, with an additional protection against a short circuit.

Working Principle

The working principle of the LT3651EUHE-4.1 is based on the principle of constant voltage for the lithium-ion/polymer battery and constant current for the lead acid battery. This ensures a safe and efficient charging process, that is protected from overheating, overcharging and short circuit.The external DC input voltage is directly conditioned and provided to the charger’s voltage regulation circuitry. It is then transformed to the correct voltages and currents required to charge the lithium-ion/polymer and lead acid batteries. During the charging process an internal temperature sensor monitors the battery charger\'s temperature and adjusts the voltage and current accordingly to prevent the cells from being over-positioned.

Application Fields

Due to the features of the LT3651EUHE-4.1, the applications are wide and diverse. It is suitable for automotive applications, specifically electric and hybrid cars, where it is required to accurately charge the lithium-ion/polymer and lead acid batteries. The charger can also be used in industrial and consumer electronic applications, including solar and wind energy solutions, in which a reliable power supply for rechargeable batteries is needed. Overall, the LT3651EUHE-4.1 is an ideal solution for the modern power management systems, providing safe, efficient and reliable charging of lithium-ion/polymer and lead acid batteries.

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