component

WS2811M

Public Made by Adom

by adom

Worldsemi LED Drivers, MSOP-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 ws2811m: 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 ws2811m: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md ws2811m: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
ws2811m-etched.fit.json ws2811m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811m-etched.glb ws2811m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811m-etched.step ws2811m: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ws2811m.glb Publish 0.1.0 · Ray 1mo ago
ws2811m.kicad_mod Publish 0.1.0 · Ray 1mo ago
ws2811m.kicad_sym Publish 0.1.0 · Ray 1mo ago
ws2811m.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
ws2811m.step Publish 0.1.0 · Ray 1mo ago

WS2811M

Worldsemi · LED Drivers · MSOP-8

WS2811M from Worldsemi, in a MSOP-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 RED channel constant-current PWM LED drive output. Open-drain, 256-level PWM at ~2 kHz. Low-level sink current IOL typ 16.5 mA (15.5-17.5 mA). Output withstands up to 20 V.
2 OUTG output GREEN channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V.
3 OUTB output BLUE channel constant-current PWM LED drive output. Open-drain, 256-level PWM. Low-level sink current typ 16.5 mA. Output rated to 20 V.
4 GND power_in Common signal and power ground (VSS = 0 V reference).
5 DO output Cascaded serial data output. Forwards the reshaped single-wire data stream (minus the first 24 bits consumed by this IC) to the DIN of the next device. Drive capability Idout ≥ 10 mA at VO = 0.4 V.
6 DIN input Single-wire serial data input. Accepts NRZ-coded 24-bit RGB data at up to 800 Kbps. VIH ≥ 0.7·VDD, VIL ≤ 0.3·VDD, hysteresis typ 0.35 V. Port withstands up to 9.5 V.
7 NC unconnected No connect. Leave floating.
8 VDD power_in Logic supply for the IC, 3.5 V to 5.5 V absolute maximum. An internal shunt regulator allows operation from supplies up to ~24 V by inserting a series resistor from the higher rail to VDD (e.g. 3.3 kΩ from a 12 V rail); no external Zener required.

Key specifications

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

CAD (KiCad official)

  • Symbol: WS2811M
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ws2811m-etched.step / ws2811m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ws2811m.step / ws2811m.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ws2811m.step 123 KB You want the bare part, or you mark your own boards.
ws2811m-etched.step 1.6 MB You want the part with WS2811M already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 412 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 (8 pp, sha256 6e9028cd9758beb6, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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