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BQ27541-G1: Can use BQ27542-G1 to replace BQ27541-G1 ?

Jayden Li
Expert 3285 points
Part Number: BQ27541-G1
Other Parts Discussed in Thread: BQ27542-G1, , BQ27541

Hi team,

Customer want to check if they can use BQ27542-G1 to replace BQ27541-G1 without changing any other design?

What should they do to complete the replacement? If any risk?

Sincerely,

Jayden Li

  • 0
    TI__Mastermind 19195 points

    Hi Jayden,

    The change list is available here: https://www.ti.com/lit/an/slua754/slua754.pdf

    If a golden image created for any version of bq27541 is loaded into a bq27542-G1 IC, the IC will become non-functional and must be replaced. The best practice is to generate a new golden image (DFI file) for bq27542-G1. If a learning cycle for an existing cell or battery has already been performed on bq27541, it is acceptable to program the same chemID and then copy the learned Qmax and Ra values to a new bq27542 golden file.

    Best regards,

    Nick