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BQ76930: BQ76930

DCon
Prodigy 10 points
Part Number: BQ76930
Other Parts Discussed in Thread: TIDA-00792

Dear reader,

I am developing a solution with bq76930 cell battery monitor and it is going to be mounted on a custom PCB. 

As it is stated in the datasheet, the component comes in SHIP mode (so apparently it comes in this mode right out of the factory, is that correct?). The circuit topology doesn’t have the possibility of feeding the TS1 input with an impulse signal to wake up the device from SHIP mode to NORMAL mode. That is why I would like to know if it is possible to have these IC pre-programmed in NORMAL mode during the assembly of the PCB, so when battery cells are connected to the circuit the bq76930 already boots up fully functional.

I would also like to know if there are any other possible workarounds, or if an option of the same/similar IC without the SHIP mode is available.

Thanks for your time.

Kind regards,

DCon

  • 0
    TI__Guru 54715 points
    Hi DCon,
    The bq76930 is in ship mode when power is applied, this is its reset state. It must be awakened by the edge on the TS1 pin. There is not an option to provide a reset into operating condition. You might consider the ideas in the boot switch options apnote or a circuit to boot from rise in the PACK voltage similar to that shown in TIDA-00792.