BQ24005PWPG4

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The BQ24005PWPG4 is a highly integrated power management and battery charging IC. It supports fast charging, improved system efficiency and reliable protection features. This power management and battery charging IC is capable of providing high-efficiency charging and protection to lithium-ion battery-powered systems. This makes the BQ24005PWPG4 an ideal solution for applications like mobile phones, wearable devices, tablets, and other battery-powered devices.

The BQ24005PWPG4 is a PMIC – Battery Charger with its application field covering 9V to 19V of input voltage, 3.5A output current, and buck-boost selectable topology. It is enhanced with advanced charge algorithms for Li-Ion and LiFePO4 chargers and offers automatic or user-defined operating modes.

The working principle of the BQ24005PWPG4 power IC is based on a buck-boost topology. This buck-boost topology consists of a step-down, a step-up, and a bypass power stage. The step-down power stage works to convert the input voltage down to the desired regulated voltage. A step-up power stage is then used to boost the regulated voltage up to a higher level. Finally, the bypass power stage is used to bypass the step-down and step-up stages when the input voltage is higher than the desired regulated voltage.

The BQ24005PWPG4 also contains a power switch for controlling the flow of power in and out of the device. This switch is controlled by an integrated charge control circuit, which is responsible for controlling the charging current, voltage, and other related parameters. Additionally, the integrated circuit contains protection features which include over-voltage, over-current, and over-temperature protection.

In summary, the BQ24005PWPG4 is an integrated power management and battery charging IC with a wide application field. It is a highly integrated PMIC – Battery Charger and includes buck-boost topology and integrated charge control, as well as other protection features. This IC is therefore ideal for powering and charging battery-operated applications such as mobile phones, wearable devices, and tablets.

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