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BQ4050: Some question about the gauge IC

Part Number: BQ4050
Other Parts Discussed in Thread: BQ40Z50, , BQ40Z60, BQ2947


  1. what is the difference between bq4050 and bq40z50?
  2. what is the difference between bq40z50 and bq40z60?
  3. Is a secondary protection IC such as bq2947 is needed to work together with the gauge IC if the pack is 4S1P?
  4. If the pack wants to communicate with a charger, and the charger also has a TI charge IC, which is the best choice of the three gauge ICs(bq4050,bq40z50,bq40z60)?


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