The Texas Instruments EMB1428QSQ/NOPB is a battery balancer IC for Lithium Ion packs, handling 1 to 7 series cells over an SPI bus. It sits in the battery management system (BMS) of automotive and industrial equipment where cell balancing extends pack life and safety. The AEC-Q100 qualification means it meets automotive reliability standards for production programs.
Cell count and chemistry — what fits your BOM
The 1-7 cell range covers small to mid-size Li-ion stacks. The SPI interface lets a host MCU read cell voltages and trigger balancing without a separate ADC channel.