Features

• Overvoltage Protection:

 24VDC Tolerance on CC1/2

■ Robust 25V overshoot clamping

 CC1/2 OVP = 5.8V

 Ultra-fast 15ns Response Time

• Surge Protection

 ±80V Surge Tolerance on CC1/2

• IEC61000-4-2 ESD Protection

 ±15kV air gap on CC1/2

 ±8kV contact on CC1/2

 ±2kV HBM on all pins

• Moisture Detection Compatible

 Over 10MΩ to ground on CC1/2

• CC Switches:

 1.25A, 240mΩ, 370pF, 13.2MHz

 Automatic 5.1kΩ dead battery pull-down

• 2.5V to 5.5V Operating Voltage Range

• -40°C to 85°C Operating Temperature Range

• Pb-free 12 bump WLCSP (0.4mm pitch)

• RoHS and Green Compliant

Brief Description

The KTU1108 provides ESD, surge, and over-voltage

protection (OVP) for USB Type-C ports’ CC1 and CC2 (CC

and VCONN) lines. ESD protection meets IEC61000-4-2

standards, eliminating the need for external TVS diodes.

Surge protection meets IEC61000-4-5 standards,

increasing immunity from power surges such as lightning

strikes on the power lines while the USB cable is

connected. Overvoltage protection (OVP) eliminates

system damage due to physical or moisture-related shorts

between the signal pins and VBUS at elevated PD voltage

levels.

The CC1/2 switches are low on-resistance to minimize

power dissipation for passing VCONN power up to 1.25A.

During dead battery conditions, internal 5.1kΩ resistors

automatically pull down on CC1/2 to ensure that the upstream

source provides 5V to VBUS.

The KTU1108 is packaged in RoHS and Green compliant

1.29mm x 1.69mm wafer-level chip-scale package

(WLCSP).

Applications

• Smartphones and Tablets

• Mobile Internet Devices, Accessories, Wearables