SI9731DQ-T1-E3

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PMIC - Battery Chargers are essential for modern portable devices such as cell phones, laptops, tablets, and other electronics. The SI9731DQ-T1-E3 is a fully integrated power management IC that is designed for use in portable devices such as cell phones and other high efficiency accessories. It is capable of providing power to a range of devices from small handhelds to high power computing and is suitable for applications where a low quiescent current and low operational temperature are needed.

The SI9731DQ-T1-E3 is a lithium-ion (Li+ or Li-Ion) charger-controller IC. It is an easy to use highly integrated and robust battery charger controller with a wide range of features that enables designers to quickly design a battery charging system that meets the various requirements. The SI9731DQ-T1-E3 is capable of driving up to 4 Li+ Cells or 2 Li-Ion Cells in a battery pack and is designed for applications from 9V to 30V. It integrated voltage, current and temperature protection to ensure a safe and reliable charging process. It has a fast charging feature that can charge up to 5A and it is designed to reduce the total number of system components needed for the power management design.

The SI9731DQ-T1-E3 has two charging modes. The first is a constant-voltage (CV) mode which is used to charge the battery quickly by maintaining a constant voltage until the battery reaches its peak voltage. The second is a constant-current (CC) mode where the battery is charged with a constant current until the battery reaches its peak current. This mode is used to precharge when the temperature is low or there is an imbalance in the cells of a battery pack. There is also a trickle-charge mode which is used to maintain the battery at a full state when it is not connected to a power source. This provides additional safety and convenience for the user.

The SI9731DQ-T1-E3’s thermal foldback (TFB) feature is designed to reduce the current when the IC temperature goes beyond its design limit. This feature prevents the IC from getting damaged and helps in preserving the life and performance of the device. The chip also supports thermal shutdown (TSD) which is used to protect the IC from over-temperature due to an excessive battery current or excessive ambient temperature.

The SI9731DQ-T1-E3 can be configured to support different levels of voltage and currents which allows users to customize the charging parameters to suit their individual needs. The device is also highly flexible and customizable with configurable pins that can be used to control the charging cycles and other functions.

The SI9731DQ-T1-E3 application field and working principle is suitable for use in a wide range of applications such as cell phones, high power accessories, tablet PCs and many other electronic products. The versatile features and customizable options make it an ideal choice for those looking for an integrated solution that provides accurate and robust battery charging.

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