TI TPD8S300ARUKR

The TPD8S300A is a single-chip USB Type-C port protection device that provides 20V VBUS short-circuit overvoltage protection and IEC ESD protection. Since the release of the USB Type-C connector, many USB Type-C products and accessories that do not meet the USB Type-C specifications have been launched on the market. One example is a USB Type-C power delivery adapter that only supplies 20V voltage on the V_BUS line. Another issue with USB Type-C is that due to the extremely close proximity of the pins in this small connector, mechanical torsion and sliding of the connector may cause the pins to short-circuit. This may result in a short-circuit between the 20V V_BUS and the CC and SBU pins. Additionally, because the pins in the Type-C connector are very close to each other, there is a serious problem where debris and moisture can cause a short-circuit between the 20V V_BUS pins and the CC and SBU pins. These non-ideal devices and mechanical events require that the CC and SBU pins must be able to withstand a voltage of 20V, even though these pins only operate at 5V or lower. By providing overvoltage protection on the CC and SBU pins, the TPD8S300A enables the CC and SBU pins to tolerate a voltage of 20V without interfering with normal operation. The device places high-voltage FETs in series on the SBU and CC lines. When a voltage higher than the OVP threshold is detected on these lines, the high-voltage switch is turned on, isolating the rest of the system from the high-voltage state present at the connector. Finally, most systems require IEC61000 - 4 - 2 system-level ESD protection for their external pins. The TPD8S300A integrates IEC61000 - 4 - 2 ESD protection for the CC1, CC2, SBU1, SBU2, DP, and DM pins, eliminating the need to place high-voltage TVS diodes externally on the connector.

• 4-channel VBus short-circuit overvoltage protection (CC1, CC2, SBU1, SBU2 or CC1, CC2, DP, DM): withstands 24V DC
• 8-channel IEC 61000-4-2 ESD protection (CC1, CC2, SBU1, SBU2, DP_T, DM_T, DP_B, DM_B)
• CC1 and CC2 overvoltage protection FETs handle up to 600mA, enabling VCONN power current pass-through
• Integrated CC dead battery resistors for handling dead battery use cases in mobile devices
• Advantages over TPD8S300:
  • Higher dead battery performance
  • USB Type-C port remains connected during IEC 61000-4-2 ESD strikes
  • 3mm×3mm WQFN package

• Laptop computers
• Tablet computers
• Smartphones
• Monitors and TVs
• Docking stations