component

WS2811C

Public Made by Adom

by adom

Worldsemi LED Drivers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ws2811c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json ws2811c: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 19h ago
README.md ws2811c: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
ws2811c-etched.fit.json ws2811c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811c-etched.glb ws2811c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811c-etched.step ws2811c: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811c.glb Publish 0.1.0 · Ray 1mo ago
ws2811c.kicad_mod Publish 0.1.0 · Ray 1mo ago
ws2811c.kicad_sym Publish 0.1.0 · Ray 1mo ago
ws2811c.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 8 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
ws2811c.step Publish 0.1.0 · Ray 1mo ago

WS2811C

Worldsemi · LED Drivers · SOP-8

WS2811C from Worldsemi, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTR output Constant-current PWM sink output for the RED LED channel. Low-side open-drain type driver rated up to 20 V withstand, typical IOL = 32 mA (30-36 mA).
2 OUTG output Constant-current PWM sink output for the GREEN LED channel. Low-side open-drain type driver rated up to 20 V withstand, typical IOL = 32 mA (30-36 mA).
3 OUTB output Constant-current PWM sink output for the BLUE LED channel. Low-side open-drain type driver rated up to 20 V withstand, typical IOL = 32 mA (30-36 mA).
4 GND power_in Common ground reference for data and power (VSS = 0 V).
5 DO output Reshaped single-wire cascade data output to the next driver's DIN. Drives >=10 mA at Vo=0.4 V; transmission delay <=300 ns (CL=15 pF, RL=10 kOhm).
6 DIN input Single-wire NZR control-data input from the upstream controller or previous cascade IC. Logic thresholds VIH >= 0.7VDD, VIL <= 0.3VDD, hysteresis ~0.35 V; withstand voltage 9.5 V.
7 NC unconnected No internal connection. Leave floating or tie to a copper pour as convenient; no functional purpose.
8 VDD power_in IC power supply, +3.5 V to +5.5 V operating (typ 5 V). When the LED rail is 12 V or 24 V a series dropper resistor is used with the internal Zener regulator to hold VDD in range.

Key specifications

Parameter Value
Manufacturer Worldsemi
Package SOP-8
Category LED-drv
Pins 8

CAD (KiCad official)

  • Symbol: WS2811C
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ws2811c-etched.step / ws2811c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws2811c.step / ws2811c.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ws2811c.step 122 KB You want the bare part, or you mark your own boards.
ws2811c-etched.step 1.7 MB You want the part with WS2811C already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 422 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Worldsemi datasheet (7 pp, sha256 f35504c08de5d983, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF