RT9519BGQW

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The RT9519BGQW is a power management integrated circuit (PMIC) used for battery charging. It features a high efficiency switch mode charger that offers either current or voltage priority for battery charging. The device also offers over-voltage protection and over-temperature protection to protect batteries from damage due to excessive current or temperature. The RT9519BGQW is suitable for a wide range of applications such as mobile phones, tablets, digital cameras, and notebook computers.

The RT9519BGQW provides a total of four charging profiles. Two are dedicated to Li-ion batteries, one for NiMH batteries, and one for lithium polymer batteries. These profiles can be adjusted to suit the need of the application, such as charging current, charging voltage, and termination conditions. The device also has an adaptive power-management feature that dynamically reduces the charging current to minimize battery heating or maximize charge cycle life.

The RT9519BGQW also provides an accurate and low cost current sense amplifier with a wide range of gain settings. This enables the user to monitor the battery current at a higher resolution while consuming a minimal amount of power. The device also has a thermal regulation circuit which adjusts the charging voltage based on the battery temperature to ensure accurate charging and extend battery life.

The RT9519BGQW has an internal system controller that assists with monitoring and controlling the battery charging process. The controller monitors the voltage and current conditions of the battery, and interrupts the charge cycle when the desired condition is reached. The controller also helps to maximize the overall efficiency of the system by controlling the power loss during charging. The controller also monitors fault conditions, such as over-temperature, and provides protection against over-charging and reverse current flow.

The RT9519BGQW has a wide application field for battery charging applications. It is primarily used for charging lithium-ion and lithium polymer batteries from a 5 V input source. It is also suitable for charging NiMH batteries from a 12 V or 24 V input, and charging Li-ion batteries from a 12 V or 24 V input. The device also has a USB charging port that allows it to be used as a USB powered charger. With its wide application field and versatile charging functions, the RT9519BGQW is an ideal choice for battery charging applications.

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