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BQ24081-Q1: The charge current question

Part Number: BQ24081-Q1
Other Parts Discussed in Thread: BQ24081

Hi Team,

During debugging, changing the 6 pin of BQ24081 (ISET to ground resistance) found that when R313=8.2K, the measured ISET=97.9MA, which meets the theoretical value; But when changing R313  to 3K, the charging current can only reach about 130mA, why this issue occured?

the input voltage of the charging chip = 5.3V, the output voltage is 4.18V, the battery voltage is 3.8V (the same phenomenon as changing a 3.3V).