IP5389

V1.23

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12.4

USB C

IP5389 integrates USB C input and output recognition interfaces, automatically switches the built-in

pull-up and pull-down resistors, and automatically recognizes charging and discharging properties of the

inserted device. With Try.SRC function, when the attached device is also DRP device, IP5389 will supply

power for the opposite device.

When it works as a DFP, it will output 3A current capability information through CC pin; when it works

as a UFP, it can identify the output current capability of the opposite device.

Rd

Ip_3P0

CC1/CC2

VREF1

VREF2

VREF3

VCCIO

Figure 6

CC internal circuit

Name

Value

Ip_3P0

330uA

Rd

5.1k

Table 7

Pull-up and pull-down ability

Table 8

Comparator threshold of pull-up Ip