AUR9811DUGD

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The AUR9811DUGD is a PMIC (Power Management Integrated Circuit) that comes in the form of a standard 8-pin chip or direct mount device (DMD) designed specifically for use as a battery charger. This device offers a simple, cost-effective solution for charging rechargeable battery packs. It is typically used in consumer products, such as mobile phones and digital cameras, as well as portable medical devices.

The AUR9811DUGD operates on a powerful Charge/Discharge control loop, consisting of a Charge/Discharge loop switch (CDS), an over-temperature monitor (OTM), and a voltage error correction loop (ECL). When the CDS is enabled, the AUR9811DUGD evaluates the battery voltage and adjusts its current output accordingly. When the OTM is enabled, the device monitors the temperature of the battery and triggers an over-temperature safety feature when the battery\'s temperature exceeds a predetermined threshold.

The AUR9811DUGD also features a built-in voltage/current error measurement circuit (VEMC) that provides improved accuracy of charging cycle control. This VEMC measures the error between the set and measured charging voltages, and reports the value to the processor so the charging current can be adjusted to achieve the desired voltage. Additionally, the device provides a wide range of operating currents (1.25A-2.50A) that can be selected depending on the application.

The AUR9811DUGD is also equipped with a built-in intelligent auto-off feature, which automatically shuts off the device\'s output current after the battery is charged to a specified voltage level. The device also offers over-discharge protection, which holds the charging current in check if the voltage falls below the predetermined level. Finally, it provides protection from reverse charging, over-voltage, and short circuit, to ensure optimal safety for the user.

The AUR9811DUGD offers several advantages over other battery charging solutions, including a reduced number of external components, a smaller board size and lower power consumption. In addition, the simple and intuitive interface makes it easy to configure and set up the AUR9811DUGD, while its low cost makes it a desirable choice for many applications. For these reasons, the AUR9811DUGD has become a popular choice for battery charger circuits in various consumer products, portable medical devices, and many other applications.

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