SK6812WWA LED

SK6812WWA LED

1. Product Overview :

SK6812WWA is a smart LED control circuit and light emitting circuit in one controlled LED source,

which has the shape of a 5050 LED chip. Each lighting element is a pixel, and the intensities of the

pixels are contained within the intelligent digital interface input. The output is driven by patented PWM

technology, which effectively guarantees high consistency of the color of the pixels. The control

circuit consists of a signal shaping amplification circuit, a built-in constant current circuit, and a high

precision RC oscillator.

The data protocol being used is unipolar NRZ communication mode. The 24-bit data is transmitted

from the controller to DIN of the first element, and if it is accepted it is extracted pixel to pixel. After an

internal data latch, the remaining data is passed through the internal amplification circuit and sent out

on the DO port to the remaining pixels. The pixel is reset after the end of DIN. Using automatic

shaping forwarding technology makes the number of cascaded pixels without signal transmission only

limited by signal transmission speed.

The LED has a low driving voltage (which allows for environmental protection and energy saving),

high brightness, scattering angle, good consistency, low power, and long life. The control circuit is

integrated in the LED above.

2. Main Application Field:

● Full color LED string light, LED full color module, LED super hard and soft lights, LED guardrail tube,

LED appearance / scene lighting

● LED point light, LED pixel screen, LED shaped screen, a variety of electronic products, electrical

equipment etc..

3. Description:

● Top SMD internal integrated high quality external control line serial cascade constant current IC;

● control circuit and the chip in SMD 5050 components, to form a complete control of pixel, color

mixing uniformity and consistency;

●built-in data shaping circuit, a pixel signal is received after wave shaping and output waveform

distortion will not guarantee a line;

●The built-in power on reset and reset circuit, the power does not work;

●gray level adjusting circuit (256 level gray scale adjustable);

● red drive special treatment, color balance;

● line data transmission;

● plastic forward strengthening technology, the transmission distance between two points over 10M;

●Using a typical data transmission frequency of 800 Kbps, when the refresh rate of 30 frames per sec

More details:

sk6812wwa led strip

sk6812wwa led strip

 SK6812WWA is adapted sk6812 built-in IC for three white colors dimming leds,color chips is amber color with 1800K,warm white color chips and white color cct,with digital control ic to mix different white color,theoretically speaking the mixture white color is from 1800k to 6500k,

The controller system is the same as ws2812b,apa104 and sk6812 IC,

Amber color,warm white color and white color package in one smd

DC5V SK6812WWA DIGITAL WHITE COLOR LED Strip

60led 18w per meter.

It not only have amber color,warm white and white color,but also can mix lot of white color

Digital control to achieve different color,and indivial control

each led can mix any white color.

Waterproof rate:

IP20 non waterproof:3M sticker on the back, easy installation.
IP65 waterproof: Silcone gel or epoxy on the surface,3M sticker on the back.
IP67 waterproof: Silicone tube, equipped with card buckle and screw.
IP68 waterproof: Silicone gel or epoxy inside silicone tube,equipped with card buckle and screw.

It can be 30/60/72/144 for more choice.

5050 ww+w smd le with double white color chips

5050 ww+w smd le with double white color chips

      5050 WW+W is a type of 5050 smd led which has two white color chips inside one smd,it is CCT dimmable smd led,each led chip with Max current is 20mA,so one smd led is 40mA ,for it is the two led chips packaged closer to each other so the better mixture color effect.

ws2812 led smd chip black face

 ws2812 smd led black face leds

WS2812B is popular last two years,and most of us are using the white face ws2812b smd leds,

but sometimes we need some more choice for the black finish smd led,here are the new choice for you,it is the best chioce to match the black pcb for ws2812b led strips.

Features and Benefits

l Intelligent reverse connect protection, the power supply reverse connection does not damage the IC.

l The control circuit and the LED share the only power source.

l Control circuit and RGB chip are integrated in a package of 5050 components, form a complete control of pixel point.

l Built-in signal reshaping circuit, after wave reshaping to the next driver, ensure wave-form distortion not accumulate.

l Built-in electric reset circuit and power lost reset circuit.

l 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.

l Cascading port transmission signal by single line.

l Any two point the distance more than 5m transmission signal without any increase circuit.

l When the refresh rate is 30fps, cascade number are not less than1024 points.

l Send data at speeds of 800Kbps. 

l The color of the light were highly consistent, cost-effective..  

Applications 

l Full-color module, Full color soft lights a lamp strip.

l LED decorative lighting, Indoor/outdoor LED video irregular screen. 

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 amplification drive circuit. Also include a precision internal oscillator and a 12V voltage programmable constant curre-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 angle 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.

Mechanical Dimensions

PIN configuration 

PIN function

NO.	Symbol	Function description
1	VDD	Power supply LED
2	DOUT	Control data signal output
3	VSS	Ground
4	DIN	Control data signal input

Absolute Maximum Ratings

Prameter	Symbol	Ratings	Unit
Power supply voltage	VDD	+3.5~+5.3	V
Input voltage	VI	-0.5～VDD+0.5	V
Operation junction temperature	Topt	-25～+80	℃
Storage temperature range	Tstg	-55~+150	℃

Electrical Characteristics（TA=-20～+70℃，VDD=4.5～5.5V,VSS=0V,unless otherwise specified）

Prameter	Smybol	conditions	Min	Tpy	Max	Unit
Input current	II	VI=VDD/VSS	——	——	±1	µA
Input voltage level	VIH	DIN，SET	0.7VDD	——	——	V
	VIL	DIN，SET	——	——	0.3 VDD	V
Hysteresis voltage	VH	DIN，SET	——	0.35	——	V

Switching characteristics（TA=-20～+70℃，VDD=4.5～5.5V,VSS=0V,unless otherwise specified）

Prameter	Symbol	Condition	Min	Tpy	Max	Unit
Operation frequency	Fosc2	——	——	800	——	KHz
Transmission delay time	tPLZ	CL=15pF,DIN→ DOUT,RL=10KΩ	——	——	300	ns
Fall time	tTHZ	CL=300pF,OUTR/OUTG/OUTB	——	——	120	µs
Data transmission rate	FMAX	Duty ratio50%	400	——	——	Kbps
Input capcity	CI	——	——	——	15	pF

LED characteristic parameter

Emitting color	Model	Wavelength(nm)	Luminous intensity(mcd)	Voltage(V)
Red	13CBAUP	620-625	390-420	2.0-2.2
Green	13CGAUP	522-525	660-720	3.0-3.4
Blue	10R1MUX	465-467	180-200	3.0-3.4

Data transfer time( TH+TL=1.25µs±600ns)

T0H	0 code ,high voltage time	0.4us	±150ns
T1H	1 code ,high voltage time	0.8us	±150ns
T0L	0 code , low voltage time	0.85us	±150ns
T1L	1 code ,low voltage time	0.45us	±150ns
RES	low voltage time	Above 50µs

Data transmission method：

Note: The data of D1 is send by MCU,and D2, D3, D4 through pixel internal reshaping amplification to transmit.

Composition of 24bit data:

G7

G6

G5

G4

G3

G2

G1

G0

R7

R6

R5

R4

R3

R2

R1

R0

B7

B6

B5

B4

B3

B2

B1

B0

Note: Follow the order of GRB to sent data and the high bit sent at first.

Typical application circuit: