World-Semi WS2812B Intelligent Control LED Integrated Light Source

Features and Benefits:

Intelligent reverse connection protection prevents IC damage from power supply reverse connection.
The control circuit and the LED share a single power source.
The control circuit and RGB chip are integrated into a 5050 component package, forming a complete control of pixel points.
Built-in signal reshaping circuit ensures waveform distortion does not accumulate after reshaping to the next driver.
Integrated electric reset circuit and power loss reset circuit.
Each pixel of the three primary colors can achieve 256 brightness levels, enabling 16777216 color full-color display with a scan frequency of not less than 400Hz/s.
Signal transmission through a single line cascading port.
Transmission signal between any two points over 5 meters without additional circuitry.
When the refresh rate is 30fps, the cascade number is not less than 1024 points.
Data transmission speed of 800Kbps.
Highly consistent light color, cost-effective.
Applications:

Full-color modules, full-color soft light strips.
LED decorative lighting, indoor/outdoor LED video irregular screens.
General Description:
The WS2812B is an intelligent control LED light source with the control circuit and RGB chip integrated into a 5050 component package. It includes an intelligent digital port data latch and signal reshaping amplification drive circuit, as well as a precision internal oscillator and a 12V voltage programmable constant current control part, effectively ensuring high consistency of pixel point light color.

The data transfer protocol uses a single NZR communication mode. After the pixel power-on reset, the DIN port receives data from the controller. The first pixel collects the initial 24-bit data and then sends it to the internal data latch. The remaining data, reshaped by the internal signal reshaping amplification circuit, is sent to the next cascade pixel through the DO port. After transmission for each pixel, the signal reduces by 24 bits. The pixel adopts an auto-reshaping transmit technology, making the pixel cascade number unlimited by signal transmission and only dependent on the speed of signal transmission. The LED has advantages such as low driving voltage, environmental protection, energy-saving, high brightness, large scattering angle, good consistency, low power, and long life. The control chip integrated into the LED above makes the circuit more straightforward, compact, and easy to install.

Mechanical Dimensions and PIN Configuration:

PIN 1: VDD - Power supply for the LED
PIN 2: DOUT - Control data signal output
PIN 3: VSS - Ground
PIN 4: DIN - Control data signal input
Absolute Maximum Ratings:

Power supply voltage (VDD): +3.5 to +5.3 V
Input voltage (VI): -0.5 to VDD + 0.5 V
Operating junction temperature (To): -25 to +80 °C
Storage temperature range (Tstg): -40 to +105 °C
Electrical Characteristics (unless otherwise specified, TA=-20～+70℃, VDD=4.5～5.5V, VSS=0V):

Input current (II): ±1 µA
Input voltage level (VIH): 0.7VDD
Hysteresis voltage (VH): 0.35 V
Switching Characteristics (unless otherwise specified, TA=-20～+70℃, VDD=4.5～5.5V, VSS=0V):

Transmission delay time (tPLZ): 300 ns
Fall time (tTHZ): 120 µs
Input capacity (CI): 15 pF
RGB IC Characteristic Parameters:

Red: 13CBAUP, 620-625 nm, 390-420 mcd, 2.0-2.2 V
Green: 13CGAUP, 522-525 nm, 660-720 mcd, 3.0-3.4 V
Blue: 10R1MUX, 465-467 nm, 180-200 mcd, 3.0-3.4 V
Data Transfer Time:

T0H (0 code, high voltage time): 0.4 us
T1H (1 code, high voltage time): 0.8 us
T0L (0 code, low voltage time): 0.85 us
T1L (1 code, low voltage time): 0.45 us
RES (low voltage time): Above 50 µs
Data Transmission Method:

Data refresh cycle 1: first 24 bits, second 24 bits, third 24 bits
Data refresh cycle 2: second 24 bits, third 24 bits, third 24 bits
Composition of 24-bit data:

G7 to G0, R7 to R0, B7 to B0 (sent in GRB order, high bit first)
Typical Application Circuit:

(Provide a schematic diagram of the typical application circuit)