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BQ76952: BQ76952 how to set Manual control，Partially autonomous，Fully autonomous

Star Xu
Genius 9645 points
Part Number: BQ76952

Hi  

I have a query about BQ76952 Manual control, Partially autonomous, and Fully autonomous.

We found that sometimes FETs are not controlled by the host and turn off themselves. After checking that the charging MOS turns off itself,

The program will turn on the charging MOS again, causing the charging MOS to switch back and forth. How to  configurate the parameters.

Waiting for your reply.

Thanks

Star

  • 0
    TI__Mastermind 25605 points

    Hi Star,

    See the section below taken from Section 5.2.3.2 of the TRM. 

    To configure the device to only turn on/off the FETs using commands from the host processor, then:

    • Settings:FET:FET Options[FET_CTRL_EN] should be set to 1, so that the device can turn on/off the FETs at all.
    • Go through each of the Settings:Protection:CHG FET Protections A - C and Settings:Protection:DSG FET Protections A - C registers, and clear (0) the bits for the protections that you do not want to be able to automatically turn the FETs on or off.

    Regards,

    Max Verboncoeur