• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 63 subscribers
  • Views 216 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Battery Chargeable EVM

Namitha K M
Prodigy 200 points
Other Parts Discussed in Thread: BQ24450, BQ24610

Hi,

I want one EVM which includes battery charging circuit for 26V battery and the input voltage range is 30~36V DC, if possible I2C programmable. Can anyone suggest the suitable board for my requirement.

Thanks.

  • 0
    TI__Guru**** 166336 points

    Hi Nimtha,

    The only battery charge controller that the TI battery charge group with this input and output range is for lead-acid batteries: BQ24450.

    TI currently does not have a single IC LiIon charger or charge controller capable of up to 36V input and 26V output.  You might find a multi-IC reference design for your application at

    Regards,

    Jeff  

  • 0 in reply to Jeff F
    Prodigy 200 points

    Hi Jeff,

    Input I can reduce to any required voltage but I need to support the charging circuit for lithium polymer battery of 26V (25.9V). Can you suggest any design for that if possible at least the charging IC available. As of now with our current battery board we are using BQ24735RGR to support 14.8V battery. But this will not support for 25.9V battery, we need to include the higher voltage to our board.

    Thanks,

  • 0 in reply to Namitha K M
    TI__Guru**** 166336 points

    Hi Namitha,

    For linear charging, you can used BQ24450.  If you can customize your input voltage to track the battery voltage, thereby keeping the chargers IN to OUT ration constant, this linear option could be as efficient as a switching charger.

    For the switching buck converter based option, the BQ24610, capable of input up to 28V is an option.

    Regards,

    Jeff