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WS2811A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

WS2811A product

WS2811A

LED Indication - Discrete

RGB LED driversingle-wire LED controllerconstant-current driver256-level PWMSOP-8FSOP-8

WS2811A is a three-channel constant-current RGB LED driver for cascaded pixel, strip, string, and decorative LED applications. It accepts 24-bit RGB data through a single-wire DIN/DO chain and provides 256-level PWM dimming.

Best for

  • Cascaded RGB LED strings
  • Pixel lighting and LED strips
  • Low-current decorative LED modules

Avoid if

  • A documented RoHS, REACH, lifecycle, or qualification status is mandatory
  • The application needs independently verified package dimensions without confirming the package option

Check before use

  • Confirm the physical package variant
  • Validate DIN timing and reset interval
  • Verify LED forward-voltage stack and output voltage margin

Key specifications

RGB outputs
3 constant-current PWM channels
Output current
10 mA to 12 mA per channel; 11 mA typical
Dimming
256 grayscale levels
Interface
Single-wire cascaded DIN/DO
Data format
24-bit RGB, MSB first
Reset interval
Low level for ≥280 µs

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

RGB LED strips and stringsPixel lighting and LED displaysDecorative lighting modules

Datasheet

9d7ed0a5fad9904aad55f504d14674cd_WS2811A.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for WS2811A: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
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Alternative components

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

Design and risk insights

Questions & answers

WS2811A is a Worldsemi three-channel RGB LED driver IC with constant-current low-side outputs, integrated PWM dimming, an internal oscillator, and a single-wire cascaded digital interface.