اپتوالکترونیک ال ای دی آدرس‌پذیر و ویژه

Product Attributes

Introduction

The WS2812 series is an intelligent, externally-controlled LED light source integrating control circuitry and the light-emitting circuit into a single component, with each element serving as one pixel. Each pixel incorporates an intelligent digital interface, data latch, signal shaping and amplification drive circuit, high-precision internal oscillator, and programmable constant-current control, ensuring highly consistent pixel color output. The data protocol uses single-wire return-to-zero (RZ) communication. After power-on reset, the DIN pin receives data from the controller: the first 24 bits are extracted by the first pixel and stored in its data latch, while the remaining data is reshaped, amplified, and forwarded from the DO port to the next cascaded pixel — each pixel reducing the signal by 24 bits. With automatic signal reshaping and forwarding technology, the number of cascadable pixels is limited only by signal transmission speed. A RESET time of over 280μs prevents false resets even when interruptions occur, enabling support for lower-frequency, more cost-effective MCUs. The LEDs offer low-voltage drive, environmental friendliness, high brightness, wide viewing angle, excellent consistency, ultra-low power consumption, and ultra-long lifespan. With the control circuit integrated directly into the LED, the overall circuit design is simpler, more compact, and easier to install.

Features

• IC control circuit and LED point light source share a single power supply; control circuit and RGB chip are integrated in a 2020 package component, forming a complete externally-controlled pixel.
• Built-in signal reshaping circuit: received signals are reshaped before output, preventing accumulation of waveform distortion along the line.
• Built-in power-on reset and power-off reset circuits.
• Each pixel's three primary colors support 256 brightness levels, enabling full 16777216-color true-color display.
• Serial cascade interface — data reception and decoding via a single signal line.
• No additional circuitry required when transmission distance between any two points does not exceed 2 meters.
• Cascade count no less than 1024 pixels at a refresh rate of 30 frames/second.
• Data transmission speed up to 800Kbps.
• High color consistency across LEDs, with excellent cost performance.
• Driver IC integrates internal filter capacitors and reverse polarity protection — no external components required for the LED.

Applications

• LED displays
• Various electronic products