BQ24350DSGT

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Power management integrated circuits (PMICs) play an important role in modern electronics and are used to achieve high efficiency and longer battery life performance. The BQ24350DSGT is one such PMIC from Texas Instruments, designed for the efficient battery management of Li-Ion and Li-Polymer rechargeable cells. It is equipped with an advanced cc/cv loop, integrated reverse current protection and cell temperature monitoring, and supports a wide range of battery chemistries.

At the center of the BQ24350DSGT charging loop is a high-performance, high-precision charge controller. It is capable of delivering up to 2A of constant current (cc) while maintaining 0.8% cell voltage accuracy. An integrated voltage regulation loop also allows the device to automatically adjust the charge current as the cell voltage changes, providing constant-voltage (cv) charging that can top up charge levels without the need of manual adjustments. The handle dynamic lithium battery voltages, delivering up to 0.2% cell voltage accuracy.

The BQ24350DSGT also features an integrated reverse current protection and cell temperature monitoring circuit. It automatically disables charging if the battery temperature exceeds a preset threshold. This is important for preventing overcharge and limiting battery self discharge. Additionally, it also supports secondary battery switching, allowing the system to switch between two individually-connected cells for a more robust and reliable system design.

Applications for the BQ24350DSGT include portable devices such as tablets and mobile phones, as well as other Li-ion and Li-Polymer battery-powered electronics. The device can offer charging flexibility from a wide range of power sources such as USB, wall adapters and car batteries. It also includes safety features such as overvoltage protection, short circuit protection and charge termination.

In summary, the BQ24350DSGT is an advanced PMIC designed for efficient Li-ion and Li-Polymer battery management. It features a high-precision charge controller, reverse current protection and cell temperature monitoring, and supports a wide range of power sources. The BQ24350DSGT is ideally suited for battery-powered portable devices and other Li-ion/Li-Polymer powered electronics.

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