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I'm exploring bq76940 datasheet. I've found such typical scheme for cells connection:

bq76920 cells connection

Why VC5-VC4, VC4-VC3, VC3-VC2, VC2-VC1 pairs have only one capacitor and VC1-VC0 pair has two capacitors? What is the purpose of all these elements in this scheme?

ft232r
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  • VC0 and VC1 do not have a pair of capacitors ... look at the schematic again ... VC0 has only one capacitor ... in fact, the capacitor on VC0 is incorrectly drawn, contrary to convention – jsotola Aug 03 '19 at 19:56
  • Do you mean that it's an error in datasheet and correct schematic should look like this https://postimg.cc/TpKcmf03 ? – ft232r Aug 03 '19 at 20:14
  • no, that is not what i am saying ... i did not say that the capacitor on VC1 is incorrectly drawn – jsotola Aug 03 '19 at 20:20
  • In this case I still can't understand you point, sorry :( – ft232r Aug 03 '19 at 20:24
  • in fact, the bottom Rc and bottom Cc are not part of the ladder network, so they should have been drawn elsewhere – jsotola Aug 03 '19 at 20:28
  • Would you please tell me, why bottom Rc and Cc are not part of the ladder network? What is the purpose of this network? What kind of noise should it filter? – ft232r Aug 04 '19 at 05:45
  • both of those components are connected to ground – jsotola Aug 04 '19 at 15:37

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