BQ24123RHLTG4

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As an important branch of power management ICs (PMICs), Battery Chargers are widely used in various electronic products and are involved in many fields such as industrial control, medical care, consumer electronics, data communications and so on. In this article, BQ24123RHLTG4 is taken as an example to introduce its application field and working principle.

BQ24123RHLTG4 is a 4-channel linear or switch-mode battery charger with an input limiter designed to provide multiple charging channels to Li-Ion and LiFePO4 batteries. It eliminates the need for external components and reduces system space and cost. This device integrates buck controller and limit regulator on a single chip. The device includes safety features such as overcurrent protection, thermal regulation and overdischarge protection. It also includes accurate current measurement and chassis protection.

BQ24123RHLTG4 is widely used in applications such as notebook computers, smart battery management, smartphone, tablet and other portable devices. It can be utilized in laptops and notebooks to directly charge the lithium-ion batteries. Being more efficient than traditional battery charging circuits, it enables long battery life and ensures safe operation. Furthermore, it helps to reduce power consumption and system costs. In smart battery management, BQ24123RHLTG4 is applied to improve battery life and performance. It can be used to safely monitor and control the charging and discharging of battery cells. With its precise current and voltage measurement, it ensures higher accuracy in the prediction of battery life and capacity.

The working principle of BQ24123RHLTG4 is based on a linear or switch-mode architecture. The linear battery charger architecture is based on the control of current and voltage. BQ24123RHLTG4’s maximum charge current and charge voltage can be programmed to the intended level. Its integrated buck controller is used to provide an adjustable output voltage and regulate the current. Moreover, the limit regulator limits the maximum current and voltage to ensure safe operation for a long period of time.

BQ24123RHLTG4 is a reliable and cost-effective battery charger that integrates linear or switch-mode architectures and provides multiple charging channels to Li-Ion and LiFePO4 batteries. Its integrated buck controller, limit regulator and safety features make it an ideal choice for battery charging and management. With low power consumption and accurate current measurement, it enables safe and efficient operation.

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