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BQ21040: #CHG pin never goes inactive when charge current goes below termination current

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Part Number:BQ21040

.the charging just continues with lower current as the battery voltage rises.

1uF on IN and OUT pins. TS 10K NTC.

Riset 2k7. Charging current 200mA.

Voltage source is 5V from a bq51013B wireless charging receiver.

With 5V lab powersupply it terminates OK when passing termination current value

What to check/change ?


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