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BQ25896: Termination current accuracy out of expected

Part Number: BQ25896

Hi team,

My customer is using our BQ25896 for their 

  • May I know the accuracy of termination current if ITERM register was set for 64 mA in BQ25896. In customer's application, 125 mA termination current was measured with ICHG register set for 1536mA at room temperature. The tolerance is up to 95.3%!


  • Charging test result with 2 different board devices was showed as below. (one is green curve and one is yellow curve)

The curves of charging current have different decreasing slope and termination current that would lead device charging time to have 40 minutes difference. The total charging time is 3 hrs 30 mins for the green one and 4 hrs 10 mins for the yellow one. The tolerance is too large for customer.