2023-01-10 01:37 PM
2023-01-11 10:42 PM
Hi,
L9961 supports up to 5x cells , max 25V. It can boot up and run diagnostics / voltage measurements without MCU at a basic level after initial programming of settings, but recovery from errors etc will require MCU intervention.
If 12 - 16 cell, it is advisable to use L9963E which supports up to 14 cells. Several devices can be stacked in a vertical arrangement in order to monitor up to 31 battery packs for a total of 434 series cells. MCU is needed.
You can download the datasheet here - https://www.st.com/resource/en/datasheet/l9963e.pdf
For ease of development, an evaluation board is available for purchase - https://www.st.com/resource/en/application_note/an5696-l9963e-evaluation-board-with-on-board-mcu-with-preloaded-firmware-gui-stmicroelectronics.pdf