BQ2054SNTR

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The BQ2054SNTR is a member of the integrated power-management IC (PMIC) family from Texas Instruments. It is a highly integrated system-level switch-mode battery charger with an on-board power path. It includes an input power-supply port, battery-supply port, system-supply port, and embedded advanced safety, fault, and monitoring functions. Specifically, it is designed to provide a cost-effective solution for Lithium ion and Lithium-ion Polymer (Li-ion/LiPo) battery charging, suitable for cell phones, tablets and other portable devices.

The input power supply port can be connected to an AC adapter, USB port, or other power source, allowing the charger to draw power from these sources. The battery-supply port allows the charger to supply power to the battery when there is an input power source. The system-supply port allows the device to supply power to the system while the battery is being charged.

The BQ2054SNTR can be used to charge a single cell Li-ion or LiPo battery, thereby eliminating the need for multiple charging sources. It also comes with advanced safety and protection features, such as over-voltage, over-current, short-circuit and over-temperature protection. The charger is also capable of providing accurate charge current and charge termination voltages, allowing for the precise controlled charging of lithium ion batteries.

The BQ2054SNTR has a simple and easy to use interface, it consists of three status pins (CD Pin, STAT Pin, VFB Pin) and one control pin (EN Pin). The CD Pin indicates when the battery is connected, the STAT Pin indicates the charging status (Charging, Precharge, Fast Charge, Cease charge) and the VFB Pin indicates the battery voltage. The EN Pin is used to enable or disable the charger.

The BQ2054SNTR offers a Constant-Voltage (CV) charge algorithm, which is the most popular and effective charging method for lithium batteries. The charging current is constant and the charging voltage is adjusted to maintain a constant voltage across the battery terminals. When the battery voltage reaches the programmed voltage, the charger will then switch to a constant current mode and reduce the charging current until the current reaches 0.

The BQ2054SNTR also offers an adjustable termination voltage and current and can be used to monitor the battery voltage and charge current. This allows for precise control and management of the battery charging process. The charger can be used to quickly charge Li-ion/LiPo batteries and has low power requirements, making it suitable for applications such as Li-ion/LiPo battery packs.

The BQ2054SNTR is a highly integrated battery charger that is suitable for use in a wide range of portable devices, such as cell phones, tablets, and other portable electronics. It features advanced safety features, precise voltage control, and low power requirements, making it an ideal choice for battery pack charging applications. Its simple interface and integrability makes it an ideal choice for low-cost, high-efficiency Li-ion and LiPo battery charging.

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