SPRUJA2 November 2023
USB2.0 data lines DP and DM from Type A connector J9 are connected to the USB1 interface of the AM62P SOC to provide USB high-speed/full-speed communication. USB1_VBUS to the SOC is provided through a resistor divider network to support (5 V-30 V) VBUS operation. USB1_DRVVBUS from SOC controls the enable pin of a 500 mA current limited load switch Mfr Part# TPS2051BDto allow on board 5 V supply to power the VBUS. This load switch has an over current indication pin connected to I2C based GPIO expander on the SK EVM.
A common mode choke of Mfr Part# DLW21SZ900HQ2B is provided on USB Data lines for EMI/ EMC reduction along with ESD protection Mfr Part# TPD4S012DRYR to suppress any transient voltages.