component

WS2811

Public Made by Adom

by adom

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

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs ws2811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d 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 pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · 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 Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md ws2811: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 14d ago
ws2811-etched.fit.json ws2811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
ws2811-etched.glb ws2811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
ws2811-etched.step ws2811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 4d ago
ws2811.glb Publish 0.1.0 · Ray 1mo ago
ws2811.kicad_mod Publish 0.1.0 · Ray 1mo ago
ws2811.kicad_sym Publish 0.1.0 · Ray 1mo ago
ws2811.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
ws2811.step Publish 0.1.0 · Ray 1mo ago

WS2811

Worldsemi · LED Drivers · SOP-8

WS2811 from Worldsemi, in a SOP-8. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTR output RED channel constant-current PWM sink output. 20V max port voltage, typical sink current 16 mA (14-18 mA range) at DC=5V with DIN=FFh. Drives LED cathode(s) with series ballast resistor Rd sized to supply voltage.
2 OUTG output GREEN channel constant-current PWM sink output. 20V max port voltage, typical sink current 16 mA. Delayed turn-on relative to other channels to reduce supply ripple at frame refresh.
3 OUTB output BLUE channel constant-current PWM sink output. 20V max port voltage, typical sink current 16 mA. 256-level PWM at 4 kHz scan frequency.
4 GND power_in Ground reference for both signal and power. VSS = 0V.
5 DO output Cascade data output. Reshaped/retimed forward of remaining bits after this IC consumes its first 24 bits. Drives next stage's DIN. Low-level output current >=10 mA at Vo=0.4V; propagation delay tPLZ <=300 ns (CL=15pF, RL=10kΩ). Withstands transient 24V short without damage.
6 DIN input Single-wire serial data input (NRZ, 800 kbps). VIH >= 0.55*VDD, VIL <= 0.3*VDD, hysteresis ~0.35V. First 24 bits (R7..R0, G7..G0, B7..B0, MSB first) are latched by this IC; remaining bits are forwarded through DO. RESET frame is low >=280 µs. Port withstands 9.5V and transient 24V short.
7 NC unconnected No internal connection. Leave floating or tie to any potential per PCB layout convenience.
8 VDD power_in Logic supply for the IC. Operating range +3.5 to +5.7 V (absolute max), typical 4.5-5.5V. Quiescent current ~0.3 mA. On-chip shunt regulator allows operation from supplies up to 24V via an external series dropping resistor (Rd = 150Ω @5V, 4.7kΩ @12V, 10kΩ @24V) with a 1 µF decoupling capacitor to GND.

Key specifications

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

CAD (KiCad official)

  • Symbol: WS2811
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ws2811-etched.step / ws2811-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws2811.step / ws2811.glb are the bare package body.

Provenance

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

  • Datasheet: Worldsemi datasheet (8 pp, sha256 18c5e95266753d5c, 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