Test Plan Development Guide


Based on your responses, your design will be a powerbank using the BQ25895 in a single-cell battery configuration, delivering 5V/3A via a USB Type-C port, and incorporating a fuel gauge for accurate battery level monitoring.
Would you like to update the project properties with these design specifications?
Update the project description to reflect the specifications for a single-cell power bank with a 30,000mAh capacity, a USB-C output of 5V/3A, and a fuel gauge.
The project description has been updated to reflect a single-cell power bank design with a 30,000 mAh capacity, a USB-C output of 5V/3A, and the inclusion of a fuel gauge for accurate battery level monitoring.
What would you like to work on next?
List the recommended decoupling capacitors for the BQ25895 and add them to my schematic.
The BQ25895 datasheet recommends the following decoupling strategy:
  • High-Frequency Decoupling:
    Use one 100nF ceramic capacitor (typically in a 0402 package) placed as close as possible to the VBUS (and/or SYS) pin to filter high-frequency noise. For example, you can use the 100nF 0402 capacitor.
  • Bulk Decoupling:
    In addition, a 10µF capacitor (typically in a 0603 package) is recommended to provide bulk decoupling for stability under load transients. An option is the 10uF 0603 Capacitor.
I will add these decoupling capacitors to your schematic near the appropriate nodes of the BQ25895: one 100nF capacitor for high-frequency bypassing at the VBUS pin and one 10µF capacitor for bulk decoupling at the supply input.
Add 100nF capacitor
Add 10uF capacitor
Capacitor values verification

J1

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