BQ24297 pin status

Max Roh

Other Parts Discussed in Thread: BQ24297

Hi team

I am now designing BQ24297 to BT audio.

1. what is OTGpin status when I don't use OTG function? H, L or floating?

2. when charging is full, Can I cut off the charging via only software register without hardware wire pin? if it is possible, what is CE pin status? H, L or floating?

it is purpose to reduce MCU I/O pin.

Thanks in advance.

over 8 years ago

0 Joel Hernandez II over 8 years ago

TI__Mastermind 25800 points

Hey Max,

To your first question, the OTG pin can be left in any state (H, L, float) if you are not using OTG. Please note, however, that tying low or high may affect input detection if a SDP is detected with the D+/D- pins. A High will indicate a current limit of 500mA, and a Low will indicate a current limit of 100mA.

To your second question, charging can be disabled using register REG01[4] = 1/0 for enable/disable. The /CE pin must be Low to charge however.

Regards,
Joel H

0 Max Roh over 8 years ago in reply to Joel Hernandez II

TI__Expert 4185 points

Hi Joel,

Thanks a lot!

0 Joel Hernandez II over 8 years ago in reply to Max Roh

TI__Mastermind 25800 points

No problem Max,

Let me know if you have any more questions.

Regards,

Joel H

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BQ24297 pin status