BQ2944L0DRBT

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Battery management represents an important component for the optimization of battery performance and maintains their safety. High-level battery management requires intelligence, prediction, regulability and accuracy. Power management integrated circuits (PMICs) provide these functionalities and introduce improved dimensional reduction, cost reduction, and standardization. PMICs enable power supply design, resulting in improved process and manufacturing. The BQ2944L0DRBT is an integrated PMIC that offers superior performance, advanced protection and diagnostic features to battery powered applications. It improves system efficiency and extends battery life while supporting the toughest battery management demands.

The BQ2944L0DRBT device is an integrated PMIC specifically designed for single cell Lithium-Ion or Lithium-Polymer rechargeable battery packs to support applications such as notebook personal computers, ultra-portable devices, and other battery-powered equipment. It provides system-level protection from overcharging, over-voltage, over-current, and temperature. It also provides programmability, interface circuitry, and diagnostic information.

The device incorporates a programmable charging architecture with a pulse-width modulated (PWM) constant-current/constant-voltage (CC/CV) charging profile. The built-in battery temperature monitoring feature provides an interface to an external thermistor which can be used for temperature monitoring. It also provides automatic cell balancer for multi-cell pack battery management.

The working principle of the BQ2944L0DRBT device is based on its integrated MOSFET. The MOSFET is connected between the battery and a charging regulator. When the battery is connected, the MOSFET turns on and supplies current from the battery to the regulator to charge the battery. The regulator controls the voltage and current according to the CC/CV charging profile set by the user. It monitors the battery temperature by measuring the resistance of the external thermistor and then the integrated balancer turns on and off the MOSFET in order to balance the cells in the battery pack.

The BQ2944L0DRBT device provides robust protection features and user diagnostic information to enable safer and reliable battery management solutions. The Supervisory Comparator monitors the battery voltage and temperature, overcharging, and over-current conditions with adjustable threshold levels, and triggers either internal timer or system interrupt to make longer battery life and provide better operational safety. The system alarm will notify when the critical battery status is reached.

The BQ2944L0DRBT device is an ideal PMIC for single cell battery-powered applications and offers advanced protection, user diagnostics, and programmability. It is designed for easy integration and the necessary functions for a complete battery management solution—including a PWM CC/CV charger, battery temperature monitoring, and cell balancing. The device automatically configures for charging, temperature monitoring, and cell balancing according to the parameters set by the user. With its high-performance design and small form factor, the BQ2944L0DRBT device provides an ideal solution for advanced battery management systems.

The specific data is subject to PDF, and the above content is for reference