BQ27505YZGR-J2

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The BQ27505YZGR-J2 is a small, standalone gas gauge IC designed to monitor the state of charge in a single cell Li-Ion battery. It provides an accurate real-time estimate of the remaining battery capacity, battery health, and voltage. The BQ27505YZGR-J2 also provides various diagnostic, protection, and control functions. It is an ideal solution for portable devices such as notebook PCs, cell phones, and digital cameras.

Application Field of BQ27505YZGR-J2

The BQ27505YZGR-J2 is suitable for single cell Li-Ion battery packs used in portable devices such as notebook PCs, cell phones, and digital cameras. It is capable of monitoring the state of charge in the battery pack, which helps to provide accurate estimates of remaining capacity and battery health.

The device also features a wide range of features, including over-charge and over-discharge protection, sleep mode, and short circuit detection. The BQ27505YZGR-J2 is also capable of providing diagnostic information on the battery pack, such as cell voltage and temperature.

The BQ27505YZGR-J2 also has an integrated I2C interface that allows it to be easily integrated into system designs. This allows for easy programming and configuration of the device.

Working Principle of BQ27505YZGR-J2

The BQ27505YZGR-J2 utilizes a combination of voltage, temperature, and current measurements to accurately determine the state of charge. By measuring the voltage and current of the battery pack, the device can calculate the remaining capacity of the battery. By measuring the temperature, the device can also provide information on the health of the battery pack.

To accurately measure the current of the battery pack, the BQ27505YZGR-J2 is equipped with an onboard current sense amplifier. This amplifier amplifies the signal from the current sense resistor and converts it into a digital signal that can be used by the device. The device can also be programmed to provide an accurate reading of the current even if the voltages of the supply and ground pins are different.

The BQ27505YZGR-J2 also has an integrated I2C interface, which allows for easy integration into system designs. The I2C interface allows for easy programming of the device, and can be used to set up the device’s various functions and parameters. Furthermore, the I2C interface can also be used to read out diagnostic information such as cell voltage and temperature.

Conclusion

The BQ27505YZGR-J2 is a small, standalone gas gauge IC designed to monitor the state of charge in a single cell Li-Ion battery. It provides an accurate real-time estimate of the remaining battery capacity, battery health, and voltage. It is suitable for battery packs used in portable devices such as notebook PCs, cell phones, and digital cameras. The BQ27505YZGR-J2 utilizes a combination of voltage, temperature, and current measurements to accurately determine the state of charge. The device is also equipped with an integrated I2C interface for easy integration into system designs, and can be used to set up various functions and parameters.

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