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BQ24707: BQ24707 about AGND and PGND

Lawrence He
Genius 3105 points
Part Number: BQ24707

Hi, Support Team

We saw BQ24707 typical application circuit, about AGND and PGND should layout in different layer?

if any suggestion, Please advise me.

Thanks,

Best regards,

Lawrence

  • +1
    TI__Expert 4780 points

    Hello Lawrence,

    Separate analog ground(AGND) and power grounds(PGND) is preferred. PGND should be used for all power stage related ground net. AGND should be used for all sensing, compensation and control network ground. Connect all analog grounds to a dedicated low-impedance copper plane, which is tied to the power ground underneath the IC exposed pad. Connect analog ground and power ground together using power pad as the single ground connection point.

    Thanks,

    Khalid