BQ25170: For 4.28V charge

Jeff YANG

Part Number: BQ25170

Hi,

I found BQ25170 VSET table as below. If I need 4.28V charge, does it possible to adjust VSET resistor to maybe 25k?

or it fixed 4.2 or 4.35?

Or any similar charger can support 4.28V charge for LiFePO4?

Thanks!

Jeff

0 Bill Johns over 1 year ago

Hi Jeff

Sorry cannot adjust the charge voltage to 4.28V, as you noted 4.2V or 4.35V is best we have. Yes, values are fixed.

What can you tell me about the battery and application?

0 Jeff YANG over 1 year ago in reply to Bill Johns

Hi Bill,

1S LiFePO4 battery, maximum charging voltage = 4.28V.

Charging current >500mA, HW standalone is better.

Thanks!

Jeff

0 Bill Johns over 1 year ago in reply to Jeff YANG

Thanks Jeff

Do you have a part number or datasheet for this battery?

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