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  • TI Thinks Resolved

Design reference to charge a li-ion battery pack

Please provide reference circuit for li-ion battery charger

capacity will be 60-70volt and current capacity 40AH

  • I am moving this from the gauge group to the charger group.
    Regards,
    Swami
  • We don't have any integrated charger IC solution to support 60~70V charging voltage.

    Best Regards,

    Wang Li

    Battery Charger Solutions

  • In reply to Wang5577:

    HI Sir,

    i am asking to on and off the charging and discharging in BMS.It will done through Mosfet ic .Please note -----External charger will connect to BMS

    this on and off process is the part of BMS.Firstly it will check the measurement parameter comes from BQ ic then microcontroller takes decision whether it will on and off the MOsfet card 

    so please provide me technical note that how we achieve it.

  • In reply to peeyush tyagi:

    The requirement is not clear to me. It seems you ask a load switch, not charger.
    To speed up the support, please check www.ti.com/.../products.html and find the closest part number to support your requirement. And then, we can go from there.
    To have a system solution, we have to understand your system. Please draw a block diagram to clarify your request.

    Best Regards,

    Wang Li

    Battery Charger Solutions

  • In reply to Wang5577:

    Yes Mr. Wang i want to know about load switch.

    OUR SYSTEM IS LIKE AS BELOW:

    BATTERY(LI-ION CELLS) Pack whose capacity will be 60 volt and 40AH so to charge and discharge  this pack we need load switch.For load switch please give me some reference of circuit .

  • In reply to peeyush tyagi:

    "Firstly it will check the measurement parameter comes from BQ ic then microcontroller takes decision whether it will on and off the MOsfet card"

    Are you asking the battery charger and discharger protection FET controller?

    Or,

    Best Regards,

    Wang Li

    Battery Charger Solutions

  • In reply to Wang5577:

    Hi Wang,

    yes we want FET protector reference.

    i am using BQ76PL536 reference for battery monitoring .now i want to add circuit for charging and discharging of battery pack so for it we need FET circuit to operate battery pack charging and also provide me battery pack current calculation reference.

  • In reply to peeyush tyagi:

    We don't have any integrated charger IC solution to support 60~70V charging voltage. Please check MSP430 application notes to see if any application note can help you. It is a discrete charge solution.

    Best Regards,

    Wang Li

    Battery Charger Solutions

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