Description

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.

Features

  • 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

Applications

  • Desktop PC, Workstation & Gaming Notebooks
  • Monitors, Docking Stations, Conferencing Systems

Packaging Information

Package Dimensions Package Code
WQFN33-20 3.00mm x 3.00mm x 0.75mm UAJ

Technical Documentation

Description Documents Type
DatasheetKTU1133-04bPDF
Package Outline DrawingWQFN33-20 UAJ PODPDF

Purchase

Purchase Options
Buy from Digi-Key
Buy from Mouser