BQ25070DQCR

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BQ25070DQCR is a popularly used device in most PMICs, Battery Chargers. It is a polyphase synchronous boost linear charger with an input voltage range of 3.6V to 32V and provides an adjustable output current of up to 5A. The device comes with an integrated switching FET and an internal linear regulator. It features an advanced current-source control architecture, an adjustable termination current & voltage, low duty cycle operation, power factor correction and support for multiple charge profiles.

The application field of BQ25070DQCR includes portable and handheld devices such as tablet PCs, mobile phones, digital cameras and medical equipment as well as automotive applications including in-vehicle chargers and electric bikes. The device is also used in plug-in hybrid electric vehicles (PHEVs) and extended-range electric vehicles (EREVs).

Working Principle of BQ25070DQCR

The BQ25070DQCR is a polyphase synchronous boost linear charger with an integrated switching FET. It is designed to provide high performance and accurate current regulation at low duty cycles. The device is based on a current-source control architecture which allows it to accurately regulate the output current while maintaining a low duty cycle and providing excellent power factor characteristics.

The BQ25070DQCR operates in three modes: no load, battery charging and trickle charging. In no-load mode, the device draws the input current at a low duty cycle and maintains high efficiency. During battery charging, the device provides a low duty cycle, constant current charge to the battery. In trickle charge mode, the device regulates the battery voltage and maintains it at the desired level.

The BQ25070DQCR has an internal linear regulator which provides soft-start, over-voltage, short-circuit and thermal protection. The device also has an adjustable termination current and voltage which allows the user to configure the device for use with different types of batteries. The device supports a wide range of charge profiles such as slow charge, fast charge and constant voltage.

Benefits of BQ25070DQCR

The BQ25070DQCR is a cost-effective solution for portable and automotive applications, providing high performance with low component cost and minimal external component count. The device supports multiple charge profiles, allowing the user to configure the device to fit their applications. The device has an integrated linear regulator which provides protection against over-voltage, short-circuit, and thermal conditions. The device also has powerful features such as adjustable termination current and voltage, power factor correction and low-duty cycle operation.

The BQ25070DQCR is a high-performance device, providing excellent power efficiency and accuracy when used in portable and automotive applications. The device is protected by an internal linear regulator and features adjustable termination current and voltage as well as power factor correction. The device supports different charge profiles and has a wide input voltage range, making it ideal for a variety of applications.

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