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Renesas Electronics RAA489206 16-Cell Battery Front End (BFE) is an essential component of any Battery Management System (BMS) that periodically scans battery status and the operating environment. This scanning is done to optimize battery life and prevent catastrophic failures. To manage the overall state of the battery pack, a differential multiplexer and 16-bit ADC allow for the accurate monitoring of cell voltage, temperature, and load current.
The Renesas Electronics RAA489206 supports I2C, SPI, and SPI w/CRC protocols allowing customers to connect an MCU in a proprietary battery management solution. Low-current consumption with an average IDLE mode current of 200µA and a SHIP mode current of less than 18µA maximizes a battery pack’s storage and discharge life. The RAA489206 features internal cell balancing circuitry that provides 8mA of balance current per cell. External cell balancing for higher currents is also supported. This 16-cell high voltage BFE IC is offered in an efficient 64 Ld QFN package with a thermal pad.
