The BQ2018SN-E1TR is an integrated circuit (IC) component designed for single-cell lithium-ion and lithium-polymer battery packs. It offers a range of features that enable accurate monitoring and control of battery parameters.
One of the key features of the BQ2018SN-E1TR is its ability to accurately measure the battery's voltage and current. It incorporates a high-precision voltage measurement circuit and a dedicated current sense amplifier to ensure precise readings. This allows for accurate estimation of the battery's state of charge and capacity.
The IC also offers a robust protection mechanism that ensures the battery remains within safe operating conditions. It includes overvoltage, undervoltage, and overcurrent protection features to prevent damage to the battery. Additionally, it supports temperature sensing to monitor the battery's temperature and trigger protective measures if necessary.
To facilitate communication and integration with other devices, the BQ2018SN-E1TR supports I2C communication protocol. This allows for easy interfacing with microcontrollers or host systems. Furthermore, it incorporates an internal EEPROM memory that stores vital battery information like cycle count, state of charge, and voltage readings. This stored data can be accessed and used for battery management and diagnostics.
The IC also features a low-power sleep mode that minimizes power consumption during idle periods. This is particularly important for portable devices to conserve battery life
