BQ24103RHLRG4

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Power management integrated circuits (PMICs) are a type of IC designed to manage power in various types of electronic systems. One of the most important types of PMICs is the battery charger, which is designed to charge batteries quickly and safely. A popular example of a battery charger from Texas Instruments is the BQ24103RHLRG4, which is designed for portable applications such as cell phones, MP3 players, and tablets. This article covers the application fields and working principles of the BQ24103RHLRG4.

Application Fields

The BQ24103RHLRG4 is designed for devices that require a steady source of power such as portable devices or mobile phone power banks. The device is capable of charging a 4-cell lithium-ion battery. It supports a wide range of input voltages of 4.5 V to 32 V, making it suitable for different kinds of wall adapters, USB power sources, and automotive power sources. The device works with up to 2.5A of output current, providing enough power to quickly charge even large batteries in a short amount of time.

The device also features precise current output control to avoid overcharging, allowing users to leave the device plugged in for hours without having to worry about damaging their battery. Additionally, the BQ24103RHLRG4 features adjustable voltage levels and selectable fast or slow charge modes for versatile control of the battery’s charge rate. This makes the device suitable for applications that require an efficient and adjustable charging of lithium-ion batteries.

Working Principles

The BQ24103RHLRG4 utilizes a type of power supply known as a charge pump to manage the charging process. This type of power supply uses a series of capacitors to convert input voltages into higher or lower voltages. The charge pump in the BQ24103RHLRG4 allows it to support a wide range of input voltages, which is important for maintaining a consistent charge rate. Additionally, the charge pump is able to provide a steady and adjustable output current, helping to ensure that the battery is charged quickly and safely.

The BQ24103RHLRG4 also employs a number of safety features to ensure that the battery is not overcharged. The device features an adjustable current limit, allowing users to select the maximum current that can be supplied to the battery. Additionally, the device features overvoltage protection, temperature monitoring, and short-circuit protection to prevent damage to the battery. The device can even detect charging discontinuities and disable the charge path to prevent further damage.

Finally, the BQ24103RHLRG4 includes a number of features to make it easier to use. These features include an LED indicator to show the device’s charging status, a thermal shutdown feature to prevent overheating, and an adjustable charge voltage. All of these features make the device a great choice for applications that require a reliable, adjustable, and safe charger for lithium-ion batteries.

Conclusion

The BQ24103RHLRG4 is an efficient and versatile battery charger designed for portable applications. The device supports a wide range of input and output voltages, making it suitable for a variety of wall adapters and USB power sources. Additionally, the device provides a number of safety features to protect against overcharging and other hazards. Finally, the device includes adjustable current, charge voltage, and charge speed settings to give users greater control over the battery charging process. In short, the BQ24103RHLRG4 is an ideal choice for applications that require a reliable, adjustable, and safe charger for lithium-ion batteries.

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