WS2812B
Intelligent control LED
integrated light source
Features and Benefits
Intelligent reverse connect protection, the power supply reverse connection does not damage the IC.
The control circuit and the LED share the only power source.
Control circuit and RGB chip are integrated in a package of 5050 components, form a complete control of pixel
point.
Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not
accumulate.
Built-in electric reset circuit and power lost reset circuit.
Each pixel of the three primary color can achieve 256 brightness display, completed 16777216 color full color
display, and scan frequency not less than 400Hz/s.
Cascading port transmission signal by single line.
Any two point the distance more than 5m transmission signal without any increase circuit.
When the refresh rate is 30fps, cascade number are not less than1024 points.
Send data at speeds of 800Kbps.
The color of the light were highly consistent, cost-effective..
Full-color module, Full color soft lights a lamp strip.
LED decorative lighting, Indoor/outdoor LED video irregular screen.
Applications
General description
WS2812B is a intelligent control LED light source that the control circuit and RGB chip are integrated in
a package of 5050 components. It internal include intelligent digital port data latch and signal reshaping ampli
fication drive circuit. Also include a precision internal oscillator and a 12V voltage programmable constant curr
e-nt control part,
effectively ensuring the pixel point light color height consistent.
The data transfer protocol use single NZR communication mode. After the pixel power-on reset, the DIN
port receive data from controller, the first pixel collect initial 24bit data then sent to the internal data latch,
the other data which reshaping by the internal signal reshaping amplification circuit sent to the next cascade
pixel through the DO port. After transmission for each pixel，the signal to reduce 24bit. pixel adopt auto resha
-ping transmit technology, making the pixel cascade number is not limited the signal transmission, only depend
on the speed of signal transmission.
LED with low driving voltage, environmental protection and energy saving, high brightness, scattering angl
e is large, good consistency, low power, long life and other advantages. The control chip integrated in LED
above becoming more simple circuit, small volume, convenient installation.
WS2812B
Intelligent control LED
integrated light source
Prameter
Input current
Input voltage level
V
IL
Hysteresis voltage
V
H
Smybol
I
I
V
IH
conditions
V
I
=V
DD
/V
SS
D
IN
，SET
D
IN
，SET
D
IN
，SET
Min
——
0.7V
DD
——
——
Tpy
——
——
——
0.35
Max
±1
——
0.3 V
DD
——
Unit
µA
V
V
V
Switching characteristics（T
A
=-20½+70℃，V
DD
=4.5½5.5V,V
SS
=0V,unless otherwise specified）
Prameter
Transmission delay
time
Fall time
Input capcity
Symbol
t
PLZ
Condition
CL=15pF,DIN→
DOUT,RL=10KΩ
CL=300pF,OUTR/OU
TG/OUTB
——
Min
——
Tpy
——
Max
300
Unit
ns
t
THZ
C
I
——
——
——
——
120
15
µs
pF
RGB IC characteristic parameter
Emitting color
Red
Green
Blue
Model
13CBAUP
13CGAUP
10R1MUX
Wavelength(nm)
620-625
522-525
465-467
Luminous intensity(mcd)
390-420
660-720
180-200
Voltage(V)
2.0-2.2
3.0-3.4
3.0-3.4
Data transfer time(
TH+TL=1.25
µs
±600n
s
)
T0H
T1H
T0L
T1L
RES
0 code ,high voltage time
1 code ,high voltage time
0 code , low voltage time
1 code ,low voltage time
low voltage time
0.4us
0.8us
0.85us
0.45us
Above 50µs
±150ns
±150ns
±150ns
±150ns
Sequence chart:
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