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