The CH224K integrates multiple fast charging protocols such as USB PD3.0/2.0, BC1.2 and other boost fast charging protocols on a single chip. It features:

  • 4V to 22V input voltage
  • PD3.0/2.0, BC1.2 and other fast charging protocols
  • USB Type-C PD, positive and negative insertion detection and automatic switching
  • E-Mark simulation, automatically detect VCONN, support 100W power PD request
  • requested voltage can be dynamically adjusted through a variety of methods
  • high integration of single chip, simplified peripheral and low cost
  • built-in over-voltage and over-temperature protection module

The output voltage can be selected via the DIP switches as follows:

Output VoltageSW1SW2SW3

The Power-Good LED lights up when the selected voltage has been successfully negotiated with the USB-C power adapter and is present at the output. The voltage can also be changed during operation.