BQ24165YFFR

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Battery chargers are essential components of portable electronic systems. Without them, these devices would not have the necessary power to operate or extend their life. The BQ24165YFFR is an advanced battery charger designed for use in portable electronic systems. It is a highly efficient and reliable way of charging lithium-ion and lithium-polymer batteries. This article will describe the application field, working principle, and operating parameters of the BQ24165YFFR.

Application Field

The BQ24165YFFR is suitable for use in a wide variety of portable electronic systems, including hand-held computers, laptops, and tablets. It is particularly well-suited for charging lithium-ion (Li-ion) and lithium-polymer (Li-Po) batteries. The BQ24165YFFR is capable of high efficiency charging and can be used in either stand-alone or synchronization charger applications. It is a very versatile battery charger and can easily be scaled to different applications.

Working Principle

The BQ24165YFFR is a synchronous switch mode battery charger with integrated protection and control functions. The charger employs synchronous rectification topology for increased efficiency and thermal performance. The output is controlled by the internal MOSFET which allows for fast charging. The MOSFET is controlled by the integrated charge controller which ensures that the battery is charged safely and efficiently. The charger will monitor the input voltage and output current and adjust the charging parameters accordingly.

The charge controller also monitors the temperature of the battery and will automatically reduce or shut off the charging current if the battery temperature reaches unsafe levels. This ensures that the battery charge remains within safe levels and reduces the risk of fire or explosion. The charger also has protection against reverse voltage and overcurrent as well as an output enable/disable function.

Operating Parameters

The BQ24165YFFR is capable of charging any Li-ion or Li-Po battery from a 2.5V to 4.5V input voltage range. The charge current can be set from 10mA to 10A and the charge voltage can be set from 2.5V to 4.4V. The charge termination can be set based on a timer or the battery voltage. The BQ24165YFFR supports fast and enable/disable of the charge output current by means of a digital signal.

In terms of safety features, the BQ24165YFFR monitors and limits the battery voltage, charge current, and battery temperature during charging. The internal protection features are sufficient enough to eliminate the need for external fuses or other protective devices. The BQ24165YFFR also has a complete thermal shutdown which completely shuts down the charging when the charger temperature rises above safe levels.

The BQ24165YFFR is an advanced and highly efficient battery charger designed for use in portable electronic systems. It is capable of charging Li-ion and Li-Po batteries from 2.5V to 4.5V inputs and is capable of charging up to 10A current. The charge controller monitors and protects the battery during charging and the charger has several safety features built in. This makes it a versatile and reliable choice for many portable electronic applications.

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