BQ27010DRKRG4

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PMIC (Power management integrated circuit) are pocket-sized devices that are capable of controlling, monitoring and managing many of the power needs of modern devices. Battery management is a sub-category of this where intelligent power management ICs are used to manage power circuits within a device.

The BQ27010DRKRG4 is a battery management IC that brings together all of the power management functions necessary for a battery-powered application. It is suitable for a variety of different applications, such as portable audio and video devices, power tools, and even embedded systems.

The BQ27010DRKRG4 is designed to work with lithium-ion (Li-ion) and lithium-polymer (Li-Poly) battery cells. It integrates a highprecision voltage measurement circuit, chargin management features, and power-on/off logic. It also features a low-power sleep mode to conserve system power and lower system costs.

The main application field of the BQ27010DRKRG4 is within PDAs and other handheld computing devices where it is used to monitor and optimize the performance of the battery pack and ensure the maximum battery life and safety. It can also be used in other applications such as digital cameras and medical devices.

The working principle of the BQ27010DRKRG4 is based on the use of a buck boost converter to allow power to be drawn from the battery while charging. The chip also works to optimize the charging process while providing protection against shorts and overcharge/discharge conditions.

The BQ27010DRKRG4 incorporates a built-in voltage monitoring circuit that constantly monitors the voltage of the battery cells and compares the voltage of the battery cells to two internal limits. The limits are set by the user and are programmed into the chip. When the voltage of the cells exceed the upper limit, the chip connects a MOSFET between the positive and negative terminals of the battery, shutting off power to the load.

The chip also features a sleep mode which reduces the current consumption and extends the battery life. In this mode, the chip powers down internal circuits and then monitors the voltage of the cells. If the voltage of the cells drops below the programmed lower limit, the circuit is re-enabled to supply power to the load.

The BQ27010DRKRG4 is ideal for applications in which the power must be constantly monitored and optimized. It provides a low-level voltage monitoring and management circuit with very little power consumption, making it an ideal solution for handheld and portable devices.

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