The KTU1133 provides safety management for USB PD3.1 48V EPR ports with comprehensive protection of the CC and SBU data lines. All four data lines include 63VDC withstand for short-to-VBUS fault events in the connector and integrated transient voltage suppression (TVS) for IEC surge protection and IEC level 4 ESD protection. Fast over-voltage protection (OVP) isolates downstream system circuits during fault events.
The integrated VBUS level shift circuit and external blocking NFET gate driver allow SPR-rated PD controllers to safely operate in EPR systems.
The CC1/2 switches have low on-resistance for passing VCONN power up to 1.25A. During dead battery conditions, optional-use internal 5.1kΩ resistors automatically pull down on CC1/2 to ensure that the up-stream source provides 5V on VBUS.
The KTU1133 is packaged in RoHS and Green compliant 20-pin 3mm x 3mm WQFN package.
- CC Switches: 1.25A, 300mΩ, 50pF, 180MHz
- Automatic 5.1kΩ dead battery pull-down
- SBU Switches: 4.5Ω, 9pF, 900MHz
- Thunderbolt™ Compatible
- USB PD3.0 SPR & PD3.1 48V EPR Compatible
- 63VDC Short-to-VBUS on CC1/2, SBU1/2
- 1x/0.42x VBUS Level Shift for 48V → 20V
- VBUS EPR Blocking via external NFET
- Overvoltage Protection
- CC1/2 OVP = 5.9V
- SBU1/2 OVP = 4.2V
- Fast 60ns Response Time
- IEC61000-4-5 Surge Protection
- +90V Surge Tolerance on CC1/2
- +90V Surge Tolerance on SBU1/2
- IEC61000-4-2 ESD Protection
- ±15kV air gap on CC1/2, SBU1/2
- ±8kV contact on CC1/2, SBU1/2
- ±2kV HBM on all pins (JEDEC JS-001-2017)
- 2.7V to 4.5V Operating Supply Voltage Range
- -40°C to 85°C Operating Temperature Range
- 20-pin WQFN 3mmx3mm (0.4mm pitch)
- Pin-to-Pin Drop-In with TPD4S480
- Desktop PC, Workstation & Gaming Notebooks
- Monitors, Docking Stations, Conferencing Systems
| Package | Dimensions | Package Code |
| WQFN33-20 | 3.00mm x 3.00mm x 0.75mm | UAJ |
| Description | Documents | Type |
|---|---|---|
| Datasheet | KTU1133-04b | |
| Package Outline Drawing | WQFN33-20 UAJ POD |
| Purchase Options |
|---|
| Buy from Digi-Key |
| Buy from Mouser |