BQ25898D: Waiting for VBUS input

user777540

Part Number: BQ25898D

hello,

What is the difference between EN_HiZ setting enable and disable when battery is connected and VBUS is not connected?
For example, is there a difference in battery current consumption or VSYS output voltage?

best regards

over 5 years ago

0 Ning T over 5 years ago

TI__Guru 57651 points

Hi,

HIZ refers to high impedance mode. When the device is in HIZ, REGN LDO is off, the device draws less than IVBUS_HIZ from VBUS. In HIZ mode, the battery powers up the system if battery is present. If the battery is not present, VSYS is 0V.

Thanks,

Ning.

0 user777540 over 5 years ago in reply to Ning T

Expert 1020 points

hello,

If the HiZ mode is not set, does the battery not supply power to the system?

best regards

0 Ning T over 5 years ago in reply to user777540

TI__Guru 57651 points

Hi,

It depends. Please refer to 9.2.6.3 Supplement Mode on the d/s for the details.

Thanks,

Ning.

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BQ25898D: Waiting for VBUS input