TPD4S311YBFR

Overview

The TPD4S311YBFR is a USB Type-C port protector from Texas Instruments, providing integrated short-to-VBUS overvoltage and IEC ESD protection for CC and SBU lines. It features four channels of overvoltage protection tolerant to 24 VDC on CC pins and includes IEC 61000-4-2 ESD protection. The device supports VCONN power delivery up to 400 mA with an on-resistance of 378 mΩ typical. Packaged in a compact 16-pin DSBGA (1.69 mm × 1.69 mm), it isolates system components from high-voltage faults while maintaining signal integrity for data lines.

Feature Summary

• Four-channel short-to-VBUS overvoltage protection (CC1, CC2, SBU1, SBU2) with 24-VDC tolerance
• Integrated IEC 61000-4-2 ESD protection for all protected lines
• VCONN power support up to 400 mA with 378 mΩ typical on-resistance
• Compact 16-DSBGA package measuring 1.69 mm × 1.69 mm

Applications

• Desktop PC and motherboard ports
• Standard notebook PCs and Chromebooks
• Docking stations and port/cable adapters
• Smartphones and mobile devices

Procurement Notes

Verify the ordering suffix YBFR corresponds to the Tape & Reel packaging configuration. Confirm the specific revision level matches design requirements, as TI has released multiple revisions including the TPD4S311A variant with enhanced surge capabilities. Ensure component authenticity through authorized distribution channels.

Selection Notes

Select this part when 24-V short-to-VBUS tolerance is required on CC and SBU lines. The standard TPD4S311 provides 400 mA VCONN current; choose the TPD4S311A variant if 600 mA or higher current handling and ±35-V surge protection are needed. Verify that the 1.69-mm DSBGA footprint fits the PCB layout constraints.

Part Context

This component belongs to the TPD4S31x family of USB Type-C port protectors. It serves as a single-chip solution for protecting downstream circuitry from connector shorts and electrostatic discharge events common in USB Type-C interfaces.

Replacement Considerations

The TPD4S311A is a pin-compatible upgrade offering increased VCONN current (600 mA) and additional IEC 61000-4-5 surge protection. Other TI options include the TPD6S300 and TPD8S300 for different channel counts.