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.
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.
WS2812B is the development and new generation of product based on WS2812.It not only inherited all the good qualities of WS2812 but also improved the IC from mechanical arrangement outside to the structure inside, further enhance the stability and efficiency.
Power supply LED
Control data signal output
Control data signal input
Absolute Maximum Ratings
Power supply voltage
Operation junction temperature
Storage temperature range
Electrical Characteristics(TA=-20~+70,VDD=4.5~5.5V,VSS=0V,unless otherwise specified)
Input voltage level
Switching characteristics(TA=-20~+70,VDD=4.5~5.5V,VSS=0V,unless otherwise specified)
Transmission delay time
RGB IC characteristic parameter
Data transfer time( TH+TL=1.25µs±600ns)
0 code ,high voltage time
1 code ,high voltage time
0 code , low voltage time
1 code ,low voltage time
low voltage time
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