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BQ25606: Is BQ25606 Charger IC input connected to the output of wireless power receiver?

Part Number: BQ25606

I´m looking behalf of our designer for Li-Ion charger IC (EVM kit) with follow specs:
-   Part: Battery charger reference board (EVM kit)
-   Topology: Switch-mode buck
-   Battery chemistry: Li-Ion
-   Number of series cells: 1
-   Control interface: standalone
-   Operating Vin: 12V, 1.25A (typ); 5V, 2.5A (min)
-   Battery charge voltage: 4.2V (min/max)
-   Charge current: 2.5A – 3A

May I ask you kindly to confirm if item code: BQ25606 is only/best choise or could we consider to use some other too?

If BQ25606 recommended, couple questions

- Charger IC input: connected to the output of wireless power receiver?

- How to connect D+ and D- pins when there is 5V – 12V unknown adaptor at the VBUS input?

  • hey Sari,

    The bq25606 is going to be the best option for what you are looking for.

    You can find the bq25606EVM kit on the TI store for demoing purposes.

    Wireless: As long as the receiver output is steady, it should work fine.

    D+D- pins should be connected to the D+/D- lines of USB port that will be connected, be it 5V or 12V. The charger's input detection will determine what the input current limit will be. However, if both the 5V input and the 5V input are detected as "Unknown", meaning D+/D- as essentially floating or do not meet any standard, then the ILIM pin resistance will determine the input current limit. 

    Regards,

    Joel H