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CCG3PA 45W Power Bank Reference Design using Southchip | Cypress Semiconductor

CCG3PA 45W Power Bank Reference Design using Southchip

Last Updated: 
May 18, 2021

The CCG3PA Power Bank reference design has a portable external battery which stores charge when connected to a charger and later delivers charge to an attached device. This solution has a USB Type-C receptacle which acts as a power source or sink (Dual Role Port). In addition to the USB-C source/sink port, the design also supports an USB-A source ports and USB-microB sink port.

The two major components on the board are Cypress’s EZ-PD CCG3PA (CYPD3171-24LQXQ) controller and Southchip’s SC8915 Buck-Boost charger. 

Southchip 45W Block Diagram

Reference design features

  • Input Port:
    • USB-C: 5V/9V/15V/20V @ 45W
    • USB-micorB: max 5V/2A
  • Output Port:
    • USB-C:
      • Fixed PDP 5V/9V/15V/20V @ 45W
      • PPS 3~11V@27W, QC3.0 5 to 12V @ 18W
      • QC3.0 5 to 12V @ 18W
    • USB-A: 5 to 12V @ 18W (supports Apple/BC1.2/Samsung Galaxy/QC3.0/FCP/AFC)
  • Battery Cell: 3 in serial model @ 12.6V
  • Supports iPhone 8, iPhone 8+, iPhone X

The board hardware design files (schematic, layout etc) and firmware are readily available below for customers to reduce the design cycle.

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