BQ2954SNTRG4

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The BQ2954SNTRG4 is a highly integrated battery charger solution for a variety of applications that include mobile and computer related devices. The charger operates from an input voltage range of 4.0-12V and is capable of sourcing up to 12A of charging current.

The BQ2954SNTRG4 contains a boost converter, switch mode charge controller and many additional features such as out of regulation charging protection, input overvoltage protection and temperature sensing. A comprehensive battery charging algorithm is supported which allows the charger to operate with a wide range of battery types and chemistries.

Application Field

The BQ2954SNTRG4 is ideal for use in mobile phones, digital cameras, PDAs, MP3 players, camcorders and notebook computers. It is also suitable for industry-standard Nickel-Cadmium, Nickel-Metal-Hydride, Lead-Acid and Li-Ion rechargeable battery types and chemistries.

The BQ2954SNTRG4 allows for safe and reliable charging of batteries by providing protection against input overvoltage, thermal overload, and out of regulation charging. This makes it ideal for use in consumer portable electronics by providing safe and reliable on-board battery charging capabilities.

Working Principle

The BQ2954SNTRG4 operates by first regulating the input voltage to the device in order to provide a constant source of power to the boost converter and charge controller. Then, the boost converter is used to step up the input voltage to the desired voltage level required for the battery charging.

The charge controller then regulates the current flow to the battery in order to ensure that the battery is charged safely and efficiently. The charge controller can be configured to charge the battery using a range of charging algorithms depending on the desired charging profile.

Finally, the BQ2954SNTRG4 can also be used to protect the battery from damage by providing protection against input overvoltage, thermal overload and out of regulation charging. Additionally, the battery can be monitored for its charging status and temperature through the integrated temperature sensing module.

Conclusion

In conclusion, the BQ2954SNTRG4 is a highly integrated and robust PMIC device that is capable of providing a safe and reliable charging solution for a variety of battery types. The BQ2954SNTRG4 supports a comprehensive battery charging algorithm and integrates a range of additional features such as input overvoltage protection, out of regulation charging protection and temperature sensing.

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