KTU1121EGAB-TA

Power Management - Specialized Overview

The KTU1121EGAB-TA is a USB Type-C port protector from Kinetic Technologies, designed to safeguard CC and SBU pins. It features four conducting paths with overvoltage protection (OVP) for USB Type-C signals. The device provides ultra-fast 15ns response time and IEC61000-4-5 surge protection of ±40V on CC/SBU lines. It operates within a 2.5V to 5.5V supply range and supports up to 1.25A current through CC switches. The component is housed in a 16-bump WLCSP package measuring 1.7mm x 1.7mm.

Power Management - Specialized Feature Summary

• Provides overvoltage protection for CC and SBU pins with ultra-fast shutdown capability
• Supports Thunderbolt compatibility with low on-capacitance for high-speed signal integrity
• Includes automatic 5.1kΩ dead battery pull-down to ensure upstream power delivery
• Offers robust ESD and surge tolerance compliant with IEC standards

Power Management - Specialized Applications

• Notebook PCs and netbooks
• Gaming devices and set-top boxes
• Networking equipment and monitors

Power Management - Specialized Procurement Notes

Verify the specific package type and suffix when ordering, as the KTU1121A series includes both TQFN and WLCSP variants. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly. Ensure the selected part matches the required footprint for PCB layout. Check for any specific handling instructions related to the WLCSP format during procurement.

Power Management - Specialized Selection Notes

Select this model for applications requiring compact protection for USB Type-C interfaces. The 16-ball WLCSP package is ideal for space-constrained designs such as tablets and mobile devices. Consider the low quiescent current for battery-powered systems. Ensure the design accounts for the specific OVP thresholds of 5.8V on CC and 4.8V on SBU pins.

Power Management - Specialized Part Context

This component belongs to the KTU1121A series of USB interface ICs manufactured by Kinetic Technologies. The series focuses on protecting sensitive downstream circuitry from voltage spikes on USB Type-C ports. It integrates switch functionality with protection mechanisms to maintain signal integrity while preventing damage to controllers like PD modules.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical characteristics carefully if considering alternative components from other manufacturers.

Power Management - Specialized FAQ

What is the overvoltage protection threshold for the CC pins?

The CC1/2 overvoltage protection threshold is 5.8V.

Does the KTU1121EGAB-TA support Thunderbolt signals?

Yes, the device is compatible with Thunderbolt signals due to its low on-capacitance switches.

What is the maximum current rating for the CC switches?

The CC switches can pass VCONN power up to 1.25A.