External Components for I/O1_IN

T

tribalcoder1

Based on the datasheet, what external components or connections are typically required for terminal I/O1_IN? Include recommended bypass capacitors, pull-up/pull-down resistors, or other supporting circuitry.

flux

I’ll check the USBLC6-2SC6 datasheet for the I/O1_IN terminal function and its recommended application connections, then summarize the required external support components.

flux

For USBLC6-2SC6 terminal I/O1_IN, the typical datasheet-style use is simple: it connects directly to the external high-speed signal line being protected, usually the connector-side USB D+ or D− line.
Required/supporting connections:
  • I/O1_IN: connect to the exposed/connector-side signal line.
  • I/O1_OUT: connect to the protected IC-side continuation of the same signal.
  • GND: connect to the PCB ground plane with the shortest, lowest-inductance path possible.
  • VBUS: connect to the USB/bus supply rail when protecting USB-style interfaces, so the internal clamp has the correct reference.
  • Bypass capacitor: no bypass capacitor is required specifically on I/O1_IN; if VBUS is present, place normal local VBUS-to-GND decoupling near the connector/ESD area as part of the USB power design.
  • Pull-up / pull-down resistors: none are required for I/O1_IN by the TVS device. Any USB pull-ups/pull-downs are determined by the USB controller or Type-C/USB interface requirements, not by the USBLC6-2SC6 itself.
  • Layout requirement: place the TVS close to the connector, keep I/O1_IN, I/O1_OUT, VBUS, and GND traces short, and avoid stubs on the protected high-speed line.
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Pins

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Layout

3D View

Name
Pin #
Type
Part Type
Pin Group
Pin Orientation
Section
Terminal Order
I/O1_IN
1
Bi-Directional
Terminal
GND
2
Ground
Terminal
I/O2_IN
3
Bi-Directional
Terminal
I/O2_OUT
4
Bi-Directional
Terminal
VBUS
5
Power In
Terminal
I/O1_OUT
6
Bi-Directional
Terminal

USBLC6-2SC6