here have some data of ws2813 5050 led ,which is better than ws2812b sk6812 rgb led
PCS WS2813 6Pins 5050 RGB DC5V
WS2813 is a set of control circuit and light-emitting circuit in one of the intelligent external control LED light source. Its appearance and a 5050LED lamp beads the same, each component is a pixel. Pixel interior contains intelligent digital interface data latching signal shaping amplification drive circuit, anti-reverse circuit, also includes high-precision internal oscillator and high precision constant current control module, effectively ensuring the pixel point light color consistent. Has a unique breakpoint transfer function, to achieve two-way signal transmission, a single pixel in the case of damage, does not affect the overall color display. Data protocol using single-line zero-code communication, pixel reset after power-on, DIN-side receiver from the controller to transfer data from the first sent over the 24bit data is the first pixel after extraction, sent to the pixels inside Of the data latch, the rest of the data through the internal shaping circuit shaping after amplification through the DO port forwards the output to the next cascade of pixels, each passing through a pixel, the signal is reduced by 24bit. Pixels using automatic shaping forwarding technology, making the number of cascade of the pixel from the signal transmission limit, only limited signal transmission speed requirements. BIN end receives the data signal swallowed 24bit data, and DIN data comparison, if the DIN terminal no signal, BIN side has received the signal, switch to the BIN terminal to receive input signals to ensure that one of the IC damage will not affect the signal level The control IC remains in the BIN port to receive the state, until the next power-off after re-confirmed. Up to 2KHZ port scan frequency, capture in the high-definition camera will not flicker phenomenon, is ideal for high-speed mobile products. 250us or more of the RESET time, an interrupt will not cause a false reset, you can support a lower frequency, cheap MCU. WS2813 provides 15mA and 5mA two current versions, each version provides high-brightness version and cost-effective version, a total of 4 specifications.
6 feet built-in IC lamp beads Features:
Intelligent reverse polarity protection, reverse power supply will not damage the IC.
IC control circuit and LED point light source common a power supply.
Control circuit and RGB chip integrated in a 5050 package components, constitute a complete external control pixel.
Built-in signal shaping circuit, any one pixel after receiving the signal waveform shaping and then output to ensure that the line waveform distortion will not be accumulated.
Built-in power-on reset and power-down reset circuit.
Each pixel of the three primary colors can achieve 256 levels of brightness display, complete 16,777,216 colors of the true color display, scanning frequency of not less than 400Hz / s.
Serial cascade interface, through a signal line to complete the data reception and decoding.
Any two-point transmission distance of not more than 5 meters without adding any circuit.
When the refresh rate of 30 frames / sec, the cascade number is not less than 1024 points.
Data transmission speed up to 800Kbps.
The color of light is highly consistent and cost-effective.
WS2813 led is update ws2812b led is dual signal ,signal break out contious transmission.
sk6812 led is the same with ws2812b,but it's better than ws2812b,much stable.