BQ24171: The charging current of BQ24171 battery is 3A at 3.3V. But when the battery is charged to 3.8V, the charging current is only 200 mA.Is there a problem with the circuit?

2018

Part Number: BQ24171

The charging current of BQ24171 battery is 3A at 3.3V. But when the battery is charged to 3.8V, the charging current is only 200 mA.Is there a problem with the circuit?BQ24171.pdf

over 6 years ago

0 Jeff F over 6 years ago

TI__Guru**** 167196 points

Clark,

What is the voltage at the FB pin when charge current is 200mA? What is the voltage at PVCC? Is the IC hot to the touch?

0 ezhao over 6 years ago in reply to Jeff F

TI__Genius 10240 points

Hi Clark,

We haven’t heard back from you. We are assuming you were able to resolve the issue. If not, just post a reply below or create a new thread if the thread has locked due to time-out.

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BQ24171: The charging current of BQ24171 battery is 3A at 3.3V. But when the battery is charged to 3.8V, the charging current is only 200 mA.Is there a problem with the circuit?