| D+ | D- | QC2.0 | QC3.0 Class A | QC3.0 Class B |
|---|---|---|---|---|
| 0V | * | Apple | Apple | Apple |
<2 V | 0V | 5 V | 5 V | 5 V |
| >2V | 0V | undefined | 5V | 5 V |
| <2 V | <2V | 12 V | 12 V | 12 V |
| >2V | <2V | 9 V | 9 V | 9 V |
| <2V | >2V | undefined | continous | continous |
| >2V | >2V | 20v | previous | 20v |
Umidigi Q1 12v request
See also
https://www.onsemi.com/pub/Collateral/NCP4371-D.PDF
http://www.dianyuan.com/upload/community/2016/03/10/1457578662-31498.pdf
