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Switch from bq500211A to bq500410A

uMin
Intellectual 860 points
Other Parts Discussed in Thread: BQ500211A, BQ500410A

Hi,

My customer initially has a wireless charger solution based on bq500211A, and is working fine.

They are working on a new design based on bq500410A.  They have changed the supply voltage to 12V and the coil to A6 coil.  Everything is working, except on CS100.  When a fully charged RX device (a mobile phone) is place on bq500211A,, the bq500211A will indicate full charge condition within one minute.

However, when the same mobile phone is placed on a bq500410A, it takes 30-40 minutes to report that it is fully charged.

Is there any difference in CS100 implementation between bq500211A and bq500410A ?

Any other things have to be considered when changing design  from  bq500211A and bq500410A ?

Thanks,

CM.

  • 0
    TI__Guru 65796 points
    The CS100 function has not changed between the two devices.
    ***CS100---TX will not stop power transfer it will only change the Green LED to ON (Charge Complete).
    But if the RX is sending Charge Complete (EPT01) the TX will stop power transfer.