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BQ24250: Pre-charge current under LOW_CHG=1 (Low charge current setting 330mA)

Koshi Ninomiya
Expert 4360 points
Part Number: BQ24250

Dear team,

My customer is evaluating the BQ24250 with I2C control.
Normal charge current is set as 500mA at ICHG_0-4 of Register #4.
Pre-charge current will be 50mA which is 10% of fast charge current (normal charge current), I understand.

However, while low charge current is set as 330mA at LOW_CHG=1 of Register #5, when VBAT voltage is at pre-charge condition,
  - VBAT_UVLO (VBAT rising)=2.5V < VBAT < VLOWV (Rising)=3V
The customer measured that the pre-charge current was 330mA, was not 50mA.
If the low charge current is set as 330mA at LOW_CHG=1 of Register #5, will the pre-charge current also become 330mA as the same as the low charge current?
Does the setting of the LOW_CHG=1 override the pre-charge condition?

I look forward to your reply.
Thank you.

Best Regards,

Koshi Ninomiya