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BQ40Z50-R1: activation condition after shut down

Part Number: BQ40Z50-R1
Other Parts Discussed in Thread: BQ40Z50

Hi,

When using BQ40Z50, the activation condition after shut down according to the datasheet is that, the Pack pin voltage should higher than 2.05V~2.45V, then to activate the device after shutdown. 

Is there any requirements about the voltage duration and current? Here is a concern that after plugging in the charger, if voltage power up last for short time or the current is too small, is there any chance to make it does not work to activate?

Best Regards

Gene