8.3.2 Overvoltage Protection

The OVP of the TS5USBC402 is designed to protect the system from D+/- shorts to VBUS at the USB and USB Type-C connector. Figure 14 depicts a moisture short that would cause 20 V to appear on an existing USB solution that could pass through the device and damage components behind the device.

Figure 14. Existing Solution Being Damaged by a Short, 20 V

The TS5USBC402 will open the switches and protect the rest of the system by blocking the 20 V as depicted in Figure 15.

Figure 15. Protecting During a 20-V Short

Figure 16 is a waveform showing the voltage on the pins during an over-voltage scenario.

Figure 16. Overvoltage Protection Waveform, 20 V