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  • Resolved

BQ24715: bq24715 can’t charge

Prodigy 20 points

Replies: 3

Views: 69

Part Number: BQ24715

When the adapter is used to charge the battery,vcc_SYS 13.6v,ACDET 2.8V,CELL 3.6V,BAT 11V,but BATDRV is 13.2V

When a battery is used to power the system,BATDRV is 3.2V。

Please tell me, does this chip need to write a register to charge, and if not, what caused batdrv is 13.2V

  • Hello,

    The ChargeCurrent() register must be programmed in order to charge (register 0x14). By default, the charge current is 0mA, which disables charge by turning off the external PMOS BATFET.

    When in battery only mode, the BATFET is turned fully on.

    Regards,

    Joel H

  • In reply to Joel Hernandez II:

    Thank you, what kind of software can I use for burning and debugging, and is it feasible to use iic to drive this chip?

  • In reply to user6216887:

    Hi,

    To evaluate the charger, you can use Battery Management Studio, here: http://www.ti.com/tool/BQSTUDIO

    You will need the EV2400 communication interface device, which you can order here: http://www.ti.com/tool/EV2400

    Regards,

    Joel H

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