SLUSFF9 November 2023 BQ27Z558
PRODUCTION DATA
The BQ27Z558 gas gauge can be used with a 1-series Li-ion and Li-polymer battery pack. To implement and design a comprehensive set of parameters for a specific battery pack, customers needs Battery Management Studio (bqSTUDIO), which is a graphical user-interface tool installed on a PC during development. The firmware installed in the product has default values, which are summarized in the BQ27Z558 Technical Reference Manual. Using the bqSTUDIO tool, these default values can be changed to cater to specific application requirements during development once the system parameters, such as enabling and disabling certain features for operation, cell configuration, and chemistry that best matches the cell used, and more, are known. The final flash image, which is extracted once configuration and testing are complete, is used for mass production and is referred to as the "golden image."