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BQ76PL455A-Q1: BQ76200 EVM design refernece

Part Number: BQ76PL455A-Q1
Other Parts Discussed in Thread: BQ76PL455A, BQ76200

hi mam

i have almost the same issue but only with VM as it shows 0.3V as the value rest all values are right but still not able to obtain values in gui it shows zero for all cells.Please do go through the issue.

  • Hi Shaheen,

    You are using the bq76pl455a EVM, not the bq76200 correct?

    If so please measure all of your values for the below rails:

    VP = 

    V5VAO = 

    VDIG = 

    VM = 

    VREF = 

    BAT16 = 

    Please also check that you follow the below step:

    • What's the voltage on VIO? 
    • How many devices do you have stacked?
    • Please try disconnecting the FTDI cable from the board and then powering up the device and waking it up using a power supply on the wakeup pin. Then check the power pins and VREF (the pins you checked before) and see if the issue is still present. NOTE: If VIO power was previously being supplied by the FTDI cable, then you can connect it to VP to make sure it is powered up before sending the wakeup signal.

    Best regards,

    Taylor