The HUSB391 is a high performance, high integration USB Type-C*1 and USB Type-A*2 3-Port controller. When VIN1 connects to VIN2, if there is only one port attached, the fast charging protocols, USB PD or HVDCP are enabled, and it is only 5 V output when 2 or 3 ports are attached simultaneously. When VIN1 is not connects to VIN2, if there is only one port attached, the fast charging protocols, USB PD or HVDCP are enabled; if USB Type-A2 and USB TypeC2 are connected at the same time, USB Type-C2 and USB Type-A2 go back to 5V Sharing mode, USB Type-A1 still supports fast charging. Especially the HUSB391 can automatically identify whether the port device is a cable for a better fast charging experience. The HUSB391 is a USB PD3.1 SRC controller which supporting 5 FPDOs and 2 APDOs with programmable current and voltage. Besides, the HUSB391 also supports BC1.2 DCP, Apple 2.4A, QC2.0/3.0/QC3+, AFC, FCP and SCP, PE1.1+ protocols. The HUSB391 integrates all of required protections such as Over Voltage Protection (OVP), Under Voltage Protection (UVP), Under Voltage Lockout (UVLO), Over Current Protection (OCP), Fast Over Current Protection (FOCP), CC or DPDM Over Voltage Protection (Port OVP) and Thermal Shut Down (TSD). It is available in QFN-40L (5 mm x 5 mm) package.