LED-WS2812B-2020中文资料AGELECTRONICA数据手册PDF规格书

Features and Benefits

● The control integrated circuit and the LED share the only power source.

● 12mA operating current per channel.

● Control circuit and RGB chip are integrated in a package of 2020 components, to form a complete addressable pixel.

● 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 is of 2KHz.

● Cascading port transmission signal by single line.

● Any two point the distance not more than 3m transmission signal without any increase circuit.

● When the refresh rate is 30fps, cascade number are not less than 1024 pixels.

● Send data at speeds of 800Kbps.

● The color of the light is highly consistent, cost-effective.

● With reverse power connection, it will not be damaged.

● All external electronic components including capacitors are not required.

Applications

● Consumer Electronics,LED lighting.

● LED decorative lighting, Indoor/outdoor LED irregular screen, game machine and amusement equipment etc.

General description

WS2812B-2020 is an intelligent control LED light source, its exterior adopts the latest MOLDING packaging technology, the control circuit and RGB chips are integrated in a package of 2020 component. Its internal includes intelligent digital port data latch and signal reshaping amplification drive circuit. Also include a precision internal oscillator and a voltage programmable constant current 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 reshaping transmit technology, making the pixel cascade number is not limited the signal transmission, only depend on the speed of signal transmission.

RESET time >280μs , it won't cause wrong reset while interruption, it supports the lower frequency and inexpensive MCU. Refresh Frequency updates to 2KHz, Low Frame Frequency and No Flicker appear in HD Video Camera, it improve excellent display effect.

LED with low driving voltage, environmental protection and energy saving, high brightness, large scattering angle, good consistency, low power, long life and other advantages. The control chip integrated in LED above becoming more simple circuit, small volume, convenient installation.