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WS2812-4 built-in IC lamp driving feet
The main part of WS2812: is built in IC-WS2812 driver IC will be integrated into the common use of 5050RGB SMD beads inside. His advantage is that the circuits are integrated into the bulb inside and external circuit can be omitted, thus reducing the circuit design, reduce the external components, reduces the volume, reduce the failure rate, and reduces the production cost.
The control circuit and the RGB chip in a 5050 package of components, to form a complete control of pixels. ] built in signal shaping circuit, a pixel signal is received after wave shaping and output, ensure line waveform distortion will accumulate. The built-in power on reset and reset circuit. Each pixel point] of trichromatic color to achieve 256 brightness display, complete the 16777216 colors the Quanzhen School of Taoism, color display, scanning frequency not less than 400Hz/s The serial interface, via a signal line to complete the receiving and decoding of data. - any two transmission distance in less than 5 meters without any increase of circuit. - when the refresh rate of 30 frames per second, the number of cascade low speed mode is not less than 512 points, the high-speed mode is not less than 1024 points. The data transmission speed of up to 800Kbps. The light color is highly consistent, cost-effective.
WS2812 is a set of control circuit and light-emitting circuit in one of the intelligent control LED light source. The appearance of a 5050LED lamp, each element is a pixel. The pixel point includes the intelligent digital interface data latch signal shaping and amplifying circuit. It also includes a high precision internal oscillator and a 12V high voltage programmable current control part. Data protocol uses a single line to zero code communication mode, the pixel point in the power on reset, the DIN terminal to receive data from the controller transfers, first sent to the 24bit data after the first pixel point to the data latch, the rest of the data through the DO port forwarding output to the next cascade of pixels, each pass a pixel point of transmission, signal reduction 24bit. An automatic shaping and forwarding technology is adopted to make the number of the pixels of the pixel is not limited by the signal transmission, and only limited by the speed of signal transmission.
LED has low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, ultra low power, long life, etc.. The control circuit is integrated on the LED, the circuit is simple, the volume is small, and the installation is more convenient.
Lamp type: WS2812-4 feet
Driver chip: WS2811
The light emitting chip: three RGB
Lamp pin: 4 feet
Lamp brightness: 3000MCD
Packing quantity: 1000 / disc vacuum packing