Stefan Wagner
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 Voltage | SW1 | SW2 | SW3 |
|---|---|---|---|
| 5V | 0 | - | - |
| 9V | 1 | 1 | 1 |
| 12V | 1 | 1 | 0 |
| 15V | 1 | 0 | 0 |
| 20V | 1 | 0 | 1 |
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.
Hi.
Is there any alternative to CH224K device? from known manufacturers like TI, STM?
I'm looking for same simplicity using few resistors to setup voltages, I don't want to interface/programming.