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BQ24195 GUI vs. Datasheet Register Values

_Lina
Expert 3305 points
Other Parts Discussed in Thread: BQ2419XEVM

Team,

It has been brought to my attention that the register values from the datasheet conflict with the values provided in the BQ2419XEVM_GUI software.

See below descriptions described:

Reg01 - Bit 0 Reserved in datasheet, USB OTG Current in program

Reg01 - Bit 4-5, 10 and 11 is OTG, in software 11 is N/A

Reg05 - Bit 0 Reserved in datasheet, Fast Charge Current at Low Temp in program

Reg06 - Bit 2-4 Reserved in datasheet, IR Compensation Voltage Clamp in program

Reg06 - Bit 5-7 Reserved in datasheet, IR Compensation Resistor in program

Reg07 - Bit 4 Reserved in datasheet, Charge Voltage at High Temp in program

Reg09 - Bit 6 Reserved in datasheet, OTG in software

Which of these descriptions is correct? The datasheet or the software?

Furthermore, could you elaborate on what Reg02 Bit0 sets?

Thanks,

  • 0
    TI__Guru**** 167196 points
    The 19X software GUI is used for all members of the 19X. 195 does not have all of the features of the other members of the family.
    Reg01 - Bit 0 Reserved in datasheet - keep at default value to set BOOST current limit to highest value
    Reg01 - Bit 4-5, 10 and 11 is OTG, in software 11 is N/A - datasheet typo - software is correct
    Reg05 - Bit 0 Reserved in datasheet, Fast Charge Current at Low Temp in program - not a 195 feature - keep at default value
    Reg06 - Bit 2-4 Reserved in datasheet, IR Compensation Voltage Clamp in program - not a 195 feature - keep at default value
    Reg06 - Bit 5-7 Reserved in datasheet, IR Compensation Resistor in program - not a 195 feature - keep at default value
    Reg07 - Bit 4 Reserved in datasheet, Charge Voltage at High Temp in program - not a 195 feature - keep at default value
    Reg09 - Bit 6 Reserved in datasheet, OTG in software - not a 195 feature - this bit is read only
    Reg02 Bit0 reduces the charge current and precharge current as set in the appropriate registers by a fixed percentage.
  • 0 in reply to Jeff F
    TI__Expert 3305 points
    Thanks Jeff!