How does the WS2811 communicate?

It uses a single-wire return-to-zero code communication protocol, allowing data to be daisy-chained through multiple ICs.

What are the key specifications of the WS2811?

It supports 256-level grayscale, 800Kbps data rate, 20V output voltage, and a 4KHz PWM frequency.

What should engineers review before using the WS2811?

Verify the supply voltage requirements (3.5V-5.7V for logic) and ensure the correct external resistor values are used for higher voltage (12V/24V) applications.

What should sourcing teams check before buying WS2811?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: easy.

What is the pinout of WS2811?

Use the WS2811 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about WS2811 pinout to locate pins, power rails, and interface signals before layout.

WS2811 Datasheet, Specs, Alternatives & ECAD | WORLDSEMI CO.,LIMITED

AI summary

The WS2811 is a standard 3-channel constant current LED driver for addressable RGB lighting, utilizing a single-wire protocol for easy cascading.

Best for

Addressable LED strips
Pixel screens
Decorative lighting

Avoid if

High-speed video processing requiring higher refresh rates
Applications requiring multi-wire SPI communication

Check before use

Timing requirements for the single-wire protocol
Power supply ripple

Key specifications

Channels: 3
Grayscale: 256
Data Rate: 800 Kbps
Output Voltage: 20 V

Compliance & Environment

RoHS: -
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

LED LightingConsumer Electronics

Datasheet

e9070c7fc2e9f33bc570d74d90bdc33d.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for WS2811: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

Get Files

PCB Footprint

Land pattern for PCB layout

Get Files

3D Model

STEP file for mechanical design

Get Files

KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

Generate library

Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The WS2811 is a dedicated 3-channel LED driver IC that integrates a digital interface, data latch, and constant current output, commonly used for full-color LED control.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the WS2811?+×

How does the WS2811 communicate?+×

What are the key specifications of the WS2811?+×

What should engineers review before using the WS2811?+×

What should sourcing teams check before buying WS2811?+×

What is the pinout of WS2811?+×