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BQ25622E: Schematic diagram and Layout inspection

Tonyx.wu
Genius 3915 points
Part Number: BQ25622E

Tool/software:

Please help check whether the schematic diagram and Layout are correct. If there are any parts that need to be modified, please explain in detail. Thank you!

  • 0
    TI__Mastermind 31140 points

    Hello, 

    We are working to review and will provide comment when complete. Expected completion date is by 7/18 end of day (central standard time). 

    Best Regards,

    Garrett 

  • 0 in reply to Garrett Kreger
    TI__Mastermind 31140 points

    Hello, 

    Please see my feedback below. 

    Schematic: 

    -The capacitor at REGN is required to be a 10V or higher rated capacitor. Current schematic has a 6.3V rated capacitor. 

    -These pins are not required to be connected for operation, but if used /PG, STAT, and /INT pins require connection to a pullup rail through a resistor such as 10kohms. These pins are all open drain outputs so they only have the ability to pull low. 

    -What is reason for having 22ohms of resistance in series on SCL and SDA lines? This is not something I typically see when reviewing customer schematics. 

    Besides these comments the rest of the schematic appears okay. Required components are present. 

    Layout:

    I do not have any major concerns with the layout. Critical capacitors are placed near the IC as recommended in the Layout Guidelines section of the datasheet (Section 11.1). 

    Best Regards,
    Garrett