WS2811

Details

status

Active

creator

WorldSemi

notes

Addressable in groups (usually of 3 LEDs), common on 3 wire pixels, pucks, floods

aggregate bits

24

backup data line

No

channel bits

8

channels

3

clocked

No

current programmable

Yes

current range

3-60mA typical depending on Rext

data bitrate

800kHz

data type

WS2811/12

gpio max

5V

gpio min

3.0V

gpio min notes

0.6*VDD at 5V supply

max current

19mA

max current notes

Constant current driver, actual current set by external resistor

max pixels per string

-

other links

WS2811 Pixel Protocol Overview | Advatek Lighting

output voltage

12V

output voltage notes

Vds max - can drive LEDs at various voltages up to 12V via constant current

package size

SOIC8/DIP8

package sizes

SOIC8, DIP8

pin count

8

pixel data size

24 Bits/Pixel

pixel rate max

33.3 k Pixel / s

pwm frequency

2.0kHz

pwm frequency notes

400Hz was old spec. Newer WS2811 chips have 2kHz PWM like WS2812B post-2018

quiescent current

0.7mA

release year

2011

supply voltage

5V

supply voltage notes

VCC range 4.5-5.5V

technical notes

Standalone IC, not integrated with LEDs like WS2812, Commonly used for 12V pixels with 3 LEDs in series, External resistor sets output current, PWM updated from 400Hz to 2kHz in newer silicon revisions, Widely cloned - many compatible ICs available

third party testing

-