Functional description

STUSB06E

12/20

First charger (Figure 3) will have a 200

Ω Max resistor (RDCHGR_DAT) between D+ and D-

and its connection will held both the D+ and D- lines at high level. Second charger (Charging

Host Port Figure 4) connection will held both the D+ and D- lines to logic low level.

Figure 3.

Dedicated charger port

Figure 4.

Standard host port

Table 8.

USB lines status during charger detection

USB lines status

USB PHY with resistive detection method ON

Disconnected

Dedicated charger port

Standard host port

D+

“1”

“1”

“0”

D-

“0”

“1”

“0”