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BQ25629: Part stuck in charge mode (stat on) when unplugging slowly.

Tinic Uro
Prodigy 10 points
Part Number: BQ25629

Tool/software:

I am using BQ25629 with a 14500 LiPo and a USB4120-03-C connector in the following fashion:

My charging source is a USB hub attached to a PC (brand does not matter, I've tried a few with different chipsets). When I VERY SLOWLY unplug the USB charger cable, the part stays in charge mode with STAT LED on, forever. When I RIP the cable out fast the device works properly.

What could cause this?

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