BQ294524DRVR Integrated Circuits (ICs)

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PMIC - Battery Management

PMIC (Power Management Integrated Circuits) are becoming increasingly popular in electrically powered devices, particularly with the advances in battery technology. They are becoming a core component in many products to optimize power use and improve efficiency. A key element of PMICs is the Battery Management or Cell Protection unit. The BQ294524DRVR is one such product which provides advanced battery safety with integrated monitoring, diagnostics and control.

The BQ294524DRVR from Texas Instruments is a Battery Management IC (BMC) designed for high voltage and multi-cell Li-ion and Li-polymer battery packs. It is optimised for use in safety-critical, large format applications such as e-bikes, energy storage, EV/HEV, UPS and industrial systems. With its integrated protection and monitoring functions, the BQ294524DRVR provides superior protection and diagnostic capability to help ensure longer system life and reliable operation.

The BQ294524DRVR is designed to detect and manage high-voltage battery packs up to 17 cells (45V - as defined by IEC 63110-1). It monitors the battery via an analog-to-digital converter (ADC) allowing measurement of voltage, current, temperature and other relevant system parameters. With this data, the BQ294524DRVR enables system monitoring, reporting and safe shutdown under electrical or thermal fault conditions.

The BQ294524DRVR has a variety of on-board control features, allowing the user to tailor the unit to their system. This includes precision current monitoring and regulation, enabling the system to operate within the limits of the battery pack, as well as over current, over voltage, under voltage, short-circuit and over-temperature protection.

In addition, the BQ294524DRVR includes advanced monitoring and protection features such as active cell balancing, over-charge and over-discharge detection, bounce lock-out and Selective Cell Disabling - all of which help to improve system performance and extend battery life.

The device is provided in either a TSSOP package or a micro-lead-frame package (MLP) which is ideal for space-sensitive applications. It is designed to operate in an ambient temperature range of -40°C to 85°C and has a supply voltage of up to 5.5V. The BQ294524DRVR is a highly integrated, low power PMIC, designed to optimize and protect battery-powered systems.

In summary, the BQ294524DRVR from Texas Instruments is an excellent addition to the battery management portfolio. It provides superior protection and control functions for high voltage batteries, making it ideal for large-format applications such as e-bikes, energy storage, EVs/HEVs and industrial systems. Its integrated analog and digital interfaces enable precise monitoring of voltage, current, temperature and other system parameters, whilst its precision control features allow the user to tailor the unit to their system. With its robust design and reliable performance, the BQ294524DRVR is a great choice for battery-powered applications.

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