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TIDA-01093: wake bq76930/940 up through boot switch

user5048700
Prodigy 70 points
Part Number: TIDA-01093
Other Parts Discussed in Thread: BQ76940, BQ76930

Dear TI experts:

Once bq76943/bq76930 changes mode from MORMAL to SHIP,must I press the boot switch to wake up the chip?Can I wake the chip up just by writing specific codes?I wonder if I could remove the boot-switch when I design the sysytem based on BQ76930/bq76940.

thanks a lot!

  • 0
    TI__Guru 54715 points
    Hi User,
    When the bq769x0 is in ship mode most internal power is off. It takes a wake signal (rising edge on TS1) to wake the part. Sending a code is not possible since the portion of the IC which communicates does not have power.