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).
Features
- Over-Voltage 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
Applications
- Smartphones
- Tablets
- Mobile Internet Devices
- Wearables
| Package |
Dimensions |
Bumps |
Package Code |
| WLCSP34-12 |
1.690mm x 1.290mm x 0.620mm |
12 |
FAA |
Parameters
| Vin (min) |
Vin (max) |
ON Resistance (mΩ) |
OVP Trip Point (V) |
| 2.5V |
5.5V |
240 |
5.8 |
Technical Documentation
Purchase
| Part Number |
Marking |
Operating Temperature |
Package |
| KTU1108EFAA-TR |
MTXXYYZZZZ |
-40°C to +85°C |
WLCSP34-12 |
