Hi ,
This USBC port inserts the previously verified dock (including HDMI/USBC/USB/ CRT D-sub interface), then inserts HDMI display to dock under AC S5 state, there will be leakage 386mV to +3.3VSUS; But I install USBC adapter directly under AC S5 state, only leakage 14mV to +3.3VSUS. Based on below data, TPS65982DC seem do not tristate bus in AC S5 state then external bus voltage leakage 386mV to +3.3VSUS of system. What is your comment ? Thanks!
Dock measure voltage
EL1.1 = 0.497V
EL1.4= 0.497V
EL2.1 = 0.18V
EL2.4= 0.19V
EL3.1 = 0.468V
EL3. 4= 0.483V
EL4.1 = 0.023V
EL4. 4= 0.022V
EL5.1 = 0.008V
EL5.4= 0.002V
EL6.1 = 0.016V
EL6.4= 0.01V
U7. 4(7) = 0V
U7.5(6)= 0.018V
CC_TPS65982DC.pdfUSB TYPE-C_1_PT.pdf
USBC adapter measure voltage
EL1.1 = 0 V
EL1.4= 0V
EL2.1 = 0V
EL2.4= 0V
EL3.1 = 0V
EL3.4= 0V
EL4.1 = 0V
EL4.4= 0V
EL5.1 = 0V
EL5.4= 0V
EL6.1 = 0V
EL6.4= 0V
U7. 4(7) = 0V
U7.5(6)= 0V