BQ24401DG4

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BQ24401DG4 is a single cell Li-ion/Li-polymer battery charger integrated circuit, specifically designed for highly space-constrained applications. It integrates a high efficiency synchronous boost converter, a programmable N-channel MOSFET, the necessary supporting circuitry and all system-level diagnostics, with battery management and protection. This device has been designed to achieve optimal size and efficiency while still providing the highest level of safety and system integrity. The BQ24401DG4 is suitable for use in a variety of applications, ranging from portable consumer electronics and wearable devices to mobile medical equipment and industrial applications.

The BQ24401DG4 application field includes consumer electronics and industrial applications, to mention only a few. In consumer electronic devices, it can act as the primary power supply, directly powering the device with fast charge and discharge features. It is ideal for powering devices like tablets, smartphones, digital cameras, and even wearable products like smartwatches and fitness monitors. In industrial applications, it can be used to power cameras, load cells, sensors, and various warehouse printers. Additionally, the BQ24401DG4 can also be used in medical and laboratory equipment, which require reliable, fail-safe power sources.

The working principle of BQ24401DG4 is based on a synchronous Boost topology to provide a constant voltage output. The integrated switch current and voltage sense inputs are used to monitor the current and voltage levels of the system, and the output current and voltage are adjusted accordingly. The DC/DC controller monitors the input voltage and the output voltage, and switches the integrated N-channel MOSFET in order to provide the required output voltage and current. The N-channel MOSFET reduces power loss, ensuring maximum efficiency and reliability. Additionally, due to its high efficiency, the efficiency losses are minimized, resulting in a long battery life.

The BQ24401DG4 is a highly integrated charger IC with safety features, such as overtemperature, undervoltage lockout, and input current limit. It is designed to meet the IEC 60950-1 and UL 60950-1 safety standards. Furthermore, the BQ24401DG4 has an advanced multi-level protection scheme in order to maintain system integrity and battery safety, including thermal and short-circuit protection. The BQ24401DG4 also features an adjustable charging current, programmable input current limit, and adjustable minimum operating voltage, which can be set according to the system voltage requirements.

The BQ24401DG4 is an ideal choice for highly space-constrained applications in both consumer electronics and industrial applications. It is a highly integrated charging IC, providing reliable system protection and providing optimal efficiency and long battery life. It is also designed to meet the highest safety requirements and provides multiple options for power management and system customization.

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