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BQ51020: problems with both wired and wireless charging

Timsen
Expert 1660 points
Part Number: BQ51020
Other Parts Discussed in Thread: BQ25896,

Dear all:

     The system USES the battery wired charging chip of BQ25896 and the wireless charging chip of BQ51020

The question now is: how does a battery pair up with these two charging chips to create a charging system when two charging all exist?

When there is wireless charging, how can I disable wired charging；How can I disable wireless charging when there is wired charging?

  • 0
    TI__Guru 68846 points

    Hello

    The BQ51020 can operate with wireless charging and wired charging using the AD and AD-EN pins, see data sheet figure 13.  When voltage is present on AD pin wireless charging is disabled and wired charging is used.

    Also note that the BQ51020 is a wireless power supply IC that will supply power to a battery charging IC to manage charge to the battery.