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BQ25883: Why the charge current is not change after writing the value into REG01 successfully?

Troyson Li
Expert 2505 points
Part Number: BQ25883

Hi team , 

         My customer found that they can write current value into REG01 successfully. But the fast charge current is not changed and it still is default value. Can you help to solve it? Thank you! 

The following attachment is their setting of register.

Fullscreen M12_BQ25883_Configuration_20200303.txt Download 
* Created: Thu Apr 23 16:27:34 CST 2020
*
* Format: Register Name  tab Character,\t  Register Address  tab Character,\t  Hexadecimal register value.
* Device: bq25880
* BQZ Container: Charger_1_00-bq25882.bqz
*
REG00	00	C8
REG01	01	13
REG02	02	84
REG03	03	19
REG04	04	10
REG05	05	8D
REG06	06	3D
REG07	07	08
REG08	08	0D
REG09	09	F6
REG0A	0A	19
REG0B	0B	06
REG0C	0C	B0
REG0D	0D	00
REG0E	0E	00
REG0F	0F	00
REG10	10	02
REG11	11	00
REG12	12	00
REG13	13	00
REG14	14	00
REG15	15	30
REG16	16	02
REG17	17	00
REG19	19	00
REG1B	1B	00
REG1D	1D	00
REG1F	1F	00
REG21	21	00
REG23	23	00
REG25	25	19

  • 0
    TI__Mastermind 40575 points

    Dear Troyson,

    Can you provide some more information on the setup, such as a schematic? Waveforms of VBUS, SW, BAT, and IBAT would be helpful.

    What do they mean they can successfully write but it doesn't change? The registers indicate no IINPDM, VINDPM, nor TREG. There should be nothing preventing a write to the register and from the charger demonstrating that change.

    Thanks,

    Mike Emanuel

    Please click "This resolved my issue" button if this post answers your question.