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Original question:

MCU necessary for USB-PD Power Bank Design? Stand-alone DRP - Getting started

BQ25703A: USB-C Power Bank

Josh Cook
Prodigy 10 points
Other Parts Discussed in Thread: PMP40312, PMP40294, BQ25730, BQ25723

Tool/software:

Hi, we were looking at using TIDA-01515 to create a power bank to repurpose a specific type of battery that already has a BMS built in (SMBus communication), but we would like to know if there is a suggested replacement to TIDA-0515 as it seems to be discontinued, and what is the best way of implementing this with a battery pack with a BMS already, if there would be another chipset that would be better suited, please suggest. Power bank needs 1 DRP USB-C port (can be split off to one UFP and one DFP if easier) and 1 USB-A port.

  • 0
    TI__Mastermind 23405 points
    Hi, Josh, 
    Please refer to these two REFERENCE DESIGNS.

    PMP40312 — Automotive Dual USB Type-CTm PD DFP 5/9/12/15V Output Car Charger Reference Design

    PMP40312 is a dual port USB Type-CTm PD car charger reference design. The design's normal input voltage range is from 9V to 14.5V, and the maximum input voltage can be to 42V.The pure analog configuration for the USB type-C source controller--TPS25740B makes the PD negotiation easy. The (...)
    Test report:PDF
    Schematic:PDF
    PMP40294 — Bi-directional Battery Power System +USB A 5V2A Output Reference Design
    The PMP40294 reference design is designed for a high capacity battery packs which requires more and more charging and discharging power. It can support a wide input voltage (5~20V) from any adaptor and deliver the maximal charging current up to 3A to a 3S battery pack. By adopting the (...)
    Test report:PDF
    Schematic:PDF
    Regards
    Tiger
  • 0 in reply to Tiger Zhou
    Prodigy 10 points

    Hi Tiger,

    As I mentioned, this system needs to be charged via a singular USB-C DRP or a dual UFP and DFP port with a 4S1P battery with a nominal voltage of 17.6V

    Regards,
    Josh

  • 0 in reply to Josh Cook
    TI__Mastermind 23405 points

    I am new to the PD device. For 4S battery chargers, my recommendation is BQ25730 or BQ25723.