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  • Resolved

BQ24780S: EN_IDCHG_REG

Guru 22900 points

Part Number: BQ24780S

Hi Team,

The datasheet shows the following in page 34.
>Internal discharge current limit is the lower one between the voltage set by DischargeCurrent(), and the voltage on ILIM pin.

Does EN_IDCHG_REG=0 disable the discharge current limit feature above?
I would like to know if discharge current limit set by ILIM pin is also disabled or not.



Best Regards,
Yaita / Japan disty

  • Yaita,

    EN_IDCHG_REG=0 disables the discharge current register limit and ILIM pin current limit. ILIM pin can still disable the converter when it is pulled low.

    Best Regards,

    Wang Li

    Motor Drive Solutions

    Battery Charger Solutions

  • Guru 22900 points

    In reply to Wang5577:

    Hi Wang-san,

    Thank you always for your kind support.

    I believe discharge current regulation is applied not only in boost mode when EN_IDCHG_REG=1.
    Is my understanding correct?
    The datasheet shows th following so I would like to ask it just in case.
    -----------------------------------

    -----------------------------------

    Best Regards,
    Yaita

  • In reply to K.Yaita:

    Yaita,

    I checked EN_IDCHG_REG today. When EN_IDCHG_REG=0 disables the discharge current register limit and ILIM pin current limit. ILIM pin can still disable the converter when it is pulled low.

    Best Regards,

    Wang Li

    Motor Drive Solutions

    Battery Charger Solutions

  • Guru 22900 points

    In reply to Wang5577:

    Hi Wang-san,

    Thank you for your support.
    I understand EN_IDCHG_REG=0 (default at POR) disables both discharge current register limit and ILIM pin current limit.

    Best Regards,
    Yaita

  • In reply to K.Yaita:

    Yaita,

    Please start with a new post if you have more questions. The extra question can be easily missed after the original answer is in "Resolved" status.

    Best Regards,

    Wang Li

    Motor Drive Solutions

    Battery Charger Solutions

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