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BQ24072: Schematic design review of BQ24072 and BQ27520-G4

Danilo A.
Mastermind 24735 points
Part Number: BQ24072
Other Parts Discussed in Thread: BQ27520-G4

Hi Team,

Our customer would like to request a schematic design review of BQ24072 and BQ27520-G4. Here is the schematic diagram. 

Thank you for your support!

Regards,

Danilo

  • 0
    TI__Mastermind 19275 points

    Hi Danilo, 

    Upon review of the schematic everything on the BQ24072 looks okay, although the customer mentions on the schematic they want to ISET = 863 mA, but R14 connected to ISET is 3K. To set ISET = 863 mA R14 should be 1.03 Kohms. 

    There are a few things which need adjustment on the BQ27520-G4. A ground connection should be added between C13 and C17. The SRP pin needs to be connected to the battery pack (-) terminal (labeled LiIon- on customer schematic) and SRN needs to be connected to ground instead of battery pack-. 

    Regards,

    Garrett

  • 0 in reply to Garrett Kreger
    TI__Mastermind 24735 points

    Hi Garret,

    Thank you very much for your valuable feedback. I have updated the customer and still waiting for his response if he needs further assistance.

    Regards,

    Danilo