BQ24104RHLR

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PMIC (Power Management Integrated Circuits) are an important component in many electronic systems. Battery chargers are used to recharge and maintain this battery, and one of the most commonly used battery chargers is the BQ24104RHLR. This battery charger is used to provide a reliable and accurate charging power for a wide range of battery chemistries and applications.

Applications

The BQ24104RHLR battery charger is suitable for a variety of applications such as portable device, automotive, industrial, and consumer applications. It can be applied to electrical power tools, hand-held radios, phones and portable computers. It can also be used in automotive applications such as cars, motorcycles, and trucks. Additionally, it can be used in industrial applications such as portable communication and navigation systems.

Features

The BQ24104RHLR is a single cell Li-ion/Li-polymer battery charger. It features an integrated battery detector, making it suitable for a wide range of batteries and chemistries. It also has a unique automatic float voltage delay detection method to ensure the highest accuracy of charging and overvoltage protection. It also has an incorporated low RDSonMOSFET to provide a small switching losses, high efficiency and low battery drain.

Working Principle

The BQ24104RHLR uses two separate charging stages to achieve the required optimum battery charging process. The first stage is called the ‘precharge’ stage and it is used to reduce the amount of energy consumed by the charger by initiating the harge current limiting at an appropriate low value to avoid overcharging of the battery. The second stage is called the ‘constant voltage’ stage and here the BQ24104RHLR enters the constant voltage regulation mode, meaning that the voltage on the battery will no longer be increasing, but rather it will remain constant during the charging process until it reaches the maximum allowed voltage.

When the battery reaches the full charge level, the BQ24104RHLR will enter the float voltage mode. Float voltage mode is designed to provide a lower voltage to the battery, which will help maintain the charge level of the battery and equalize the cell voltages and minimize any problems that may arise due to voltage imbalances in the battery. The BQ24104RHLR also monitors the temperature of the battery in this mode and reduces the charging current if the temperature rises above a certain level.

The BQ24104RHLR can also provide a variety of protections to ensure the safe operation of the battery, such as short-circuit protection, over-voltage protection, over-current protection, and thermal protection. These features provide extra safety when charging large capacity batteries, typically in automotive and industrial applications.

Conclusion

The BQ24104RHLR is a highly efficient and reliable battery charger suitable for a wide range of applications. It is capable of providing a reliable and accurate charging power for battery chemistries and is able to provide a variety of protections to ensure safe operation. The integrated battery detector and unique automatic float voltage delay detection method also ensure the highest accuracy of charging.

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