Microchip Technology USB5744 4-Port SS/HS USB Controller Smart Hub

The USB5744 supports downstream battery charging with an integrated battery charger detection circuitry. This circuitry complies with the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. Additional unique features such as PortSwap, PHYBoost, and VariSense offer an advanced solution for USB applications. PortSwap adds per-port programmability to USB differential-pair pin locations, allowing direct connecting USB signals (D+/D-) to connectors. This helps to avoid uneven trace length or crossing of the USB differential signals on the PCB. The PHYBoost feature creates programmable levels of Hi-Speed USB signal drive strength in the downstream port transceivers, this attempts to restore USB signal integrity in a compromised system environment. VariSense controls the USB receiver sensitivity enabling programmable levels of USB signal receive sensitivity, permitting operation in a sub-optimal system environment.