BQ24314DSJR

PMIC - Battery Management

Battery management is an important aspect of modern technology. As the number of portable devices and wearables increases, so does the need for power efficiency and effective battery management. The BQ24314DSJR is an advanced, Programmable Switch-Mode Battery Charger IC from Texas Instruments. Specifically designed for modern lithium, lithium-ion, and lithium-polymer batteries, it is used in consumer, automotive and industrial applications.

Application Field

The BQ24314DSJR is designed for consumer and automotive applications such as mobile phones, tablets and notebooks, digital audio players, cordless tools, and power tools. It also can be used in industrial applications such as gaming and telecom equipment. Its advanced features such as Power Path Control (which enables power to be delivered regardless of the battery state), thermistor monitoring, and integrated protection make it an ideal choice for most of these applications.

Working Principle

The BQ24314DSJR is a high-performance, switch-mode battery charger with buck-boost architecture for use with a wide range of lithium, lithium-ion, and lithium-polymer batteries. At the heart of the device are two Boost/Buck Converters and an integrated SMBus 2.0 compliant interface. The buck/boost converters enable flexible and efficient charging over a wide input voltage range. The integrated SMBus communication channel provides real-time information about the battery health and state of charge, and provides multiple options for regulation control. The device is also capable of fast-charging lithium-polymer batteries in either constant current/constant voltage (CC/CV) or pre-charge/CC/CV modes.

The device also features advanced protection features such as over voltage protection, over current protection, over temperature protection, and Watchdog Timer protection. These features ensure that the battery is properly managed and protected from any kind of damage. The device also provides multiple battery monitoring capabilities, allowing it to monitor the voltage and current levels, temperature, battery condition, and the presence of a battery in the system.

The BQ24314DSJR is an extremely powerful and versatile switch-mode battery charger. Its advanced features make it well suited for a wide variety of consumer, automotive, and industrial applications. The integrated protection and monitoring features ensure that the battery is handled safely and properly.

The device also helps extend the battery life of mobile devices by automatically selecting optimal charging cycles for each battery type. With its wide range of features and capabilities, the BQ24314DSJR is an ideal choice for providing reliable and efficient charging solutions.