component

WS2811

Public Unreviewed

by Ray

Worldsemi LED Drivers, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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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)

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