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The RT1738E is a USB Type-C interface overvoltage protection IC. It protects against the high voltage shorted to VBUS to adjacent pins of CC/SBU up to 28V due to USB Power Delivery (PD), allowing VBUS from 3.3 to 21V sourcing. The RT1738E integrates ESD protection compliant with IEC61000-4-2, with contact discharge of ±8kV on CON_CC1/CON_CC2, and D1/D2, and ±6kV on CON_SBU1/CON_SBU2. The surge immunity level of CON_CC1 /CON_CC2 is up to ±35V. Additionally, the ultra-fast OVP response time of 60ns can protect the system side of the application IC from damage.The RT1738E is available in a 3×3mm WQFN package. The recommended junction temperature range is −40°C to 125°C, and the ambient temperature range is −40°C to 85°C.

Applications

  • Desktop/Notebook Computers
  • Portable Devices
  • Display Applications
  • USB-C Port Applications
Key Spec.
RT1738E
Status Active
Alternate Mode No
MCU Integrated No
Power Role Consumer
Data Role Dual Role
Iq (Typ) (μA) 20
Dead Battery Support Yes
Max Output Voltage (V) 5.5
CC Pins CC1;CC2;CON_CC1;CON_CC2
Interface Data Switch;OVP Switch
Features OVP
Package Type WQFN3x3-20
Features
  • 4-Channels of Short to VBUS Overvoltage Protection (CON_CC1, CON_CC2, CON_SBU1,CON_SBU2)
  • IEC61000-4-2 Contact Discharge Protection
    - CON_CC1/CON_CC2: ±8kV
    - D1/D2: ±8kV
    - CON_SBU1/CON_SBU2: ±6kV
  • High Absolute Maximum Ratings = 28V of CON_CC1, CON_CC2, CON_SBU1, and CON_SBU2
  • 60ns Ultra-Fast OVP Response Time of CC/SBU
  • 255mΩ (Typical) Low RON of CC Switch
  • 3.6Ω (Typical) Low RON of SBU Switch
  • 20μA Low Quiescent Current in Standby
  • High Bandwidth of 300MHz for SBU Switch
  • Support Dead Battery Function
  • 20-Pin 3x3mm WQFN Package
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