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BQ25960: Inquiry about a design concept of USB PD charger

JH Shin
Guru 10890 points
Part Number: BQ25960

Hello,

My customer is considering designing a USB PD charger using the BQ25960 with the features below:

 - Consisting of USB PD IC, switching charger, and flash charger (BQ25960), capable of fast charging over 30W

 - USB PD is a Stnadalone type and only uses PDO, not PPS, with a USB PD adapter

 - Charge with a switching charger when connecting a general charging adapter

 - Charge 8A with a flash charger when connecting a USB PD adapter of 45W or more

Is it possible to design a USB PD charger with the above features including the BQ25960?

If you have a reference design similar to this solution, please share it.

Thank you.

JH

  • 0
    TI__Mastermind 40305 points

    Hi JH,

    As shown by the Design Requirements in Section 10.2.2.1, "The design requires a smart wall adapter to provide the proper input voltage and input current to the BQ25960, following the USB_PD Programmable Power Supply (PPS) voltage steps and current steps."

    We require USB_PD PPS for use with BQ25960. You need to be able to dynamically change the input voltage and current limit to influence the charging current for the BQ25960.

    Regards,

    Mike Emanuel