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BQ51052B: Charger ICs recommendations

JH Shin
Guru 11050 points
Part Number: BQ51052B
Other Parts Discussed in Thread: BQ25171-Q1, BQ51013B-Q1, BQ51013B, BQ25170, BQ500212, BQ500212A

Tool/software:

Hello,

My customer is looking for Wired & Wireless charger IC solution that supports the following conditions.

  - Battery 3.7V. LiIon.  1400mAH

  - USB 5V charging power input

Please recommend suitable products among TI's wired and wireless charging ICs.

Thank you.

JH

  • 0
    TI__Guru* 75776 points

    Hi JH

    The BQ51052B is a 4.40V wireless power charger.  This unit is available and could charge the battery.

    Another option is to use the BQ51013B wireless power supply and BQ25170 battery charger.  This approach has an advantage if both wired and wireless charging is used.  Power to the charge can easily be switched between the two inputs.  Similar to the BQ51013B-Q1 + BQ25171-Q1 application note here.

  • 0 in reply to Bill Johns
    Guru 11050 points

    Hi Bill,

    Thank you for your reply.

    The customer has further questions.

    Q1. the BQ51052B is the newer wireless charger than the BQ51031B. Could you also recommend a wired charger solution that can be used with this product?

           In the above application note, is it ok to replace BQ51013B-Q1 with BQ51052B?

    Q2. Could you also recommend a Wireless Transmitter product to be used in pair with the Wireless Receiver you recommended?

             - Input power of the charger : DC 5 - 24V

             - Prefer products with EVM

    Thanks,

    JH

  • 0 in reply to JH Shin
    TI__Guru* 75776 points

    Hi JH

    Q1. the BQ51052B is the newer wireless charger than the BQ51031B. Could you also recommend a wired charger solution that can be used with this product? -- Do not recommend using a wired charger with the BQ51052B.  NTC in battery pack cannot be shared between two chargers.  If the BQ51013B is used then BQ25170 can be used.

      In the above application note, is it ok to replace BQ51013B-Q1 with BQ51052B?  -- Do not recommend this due to difficulty with NTC sharing.

    Q2. Could you also recommend a Wireless Transmitter product to be used in pair with the Wireless Receiver you recommended?  -- Yes the BQ25170.

    - Input power of the charger : DC 5 - 24V  -- This would require a switching charger, would his be OK?

  • 0 in reply to Bill Johns
    Prodigy 30 points

    Dear Bill,

    The customer is also looking for a compatible Tx.
    Could you please advise if the following combination would work without any issues?
    If not, we would appreciate it if you could recommend a suitable solution.

    Vin is 5V to 24V

    BQ51013B + BQ25170 + BQ500212

  • +1 in reply to Andrew Kim
    TI__Guru* 75776 points

    Hi JH

    Andrew Kim said:
    BQ51013B + BQ25170 + BQ500212

    This would be a good solution for 5V in (BQ500212A) and 4.4V out to battery (BQ51013B + BQ25170).

    But do not have a Vin 5V to 24V solutions.

  • 0 in reply to Bill Johns
    Guru 11050 points

    Hi Bill,

    Thank you for your reply.

    BQ500212A is confirmed to be in NRND status as below. Please recommend a suitable Wireless Transmitter product for the customer.

    If there is no 5V to 24V solution, please suggest a 5V solution first.

    Regards,

    JH

  • +1 in reply to JH Shin
    TI__Guru* 75776 points

    Hi JH

    Sorry but all TI transmitters are NRND, they do not meet the latest WPC standards and cannot be certified.

    But no plan to EOL the units and they will work with all TI receivers.