اپتوالکترونیک ال ای دی آدرس‌پذیر و ویژه

Product Attributes

Introduction

WS2812C-2121 is an intelligent, externally-controlled LED light source that integrates the control circuit and light-emitting circuit into a single component. It features a compact form factor in a 2121 LED package, where each component serves as one pixel. Each pixel contains an intelligent digital interface with data latch, signal reshaping and amplification drive circuitry, along with a high-precision internal oscillator and programmable constant-current control section, effectively ensuring highly consistent color output across pixels. The data protocol uses single-wire return-to-zero (RZ) communication. After power-on reset, the DIN pin receives data transmitted from the controller. The first 24 bits of incoming data are extracted by the first pixel and latched into its internal data register; the remaining data is reshaped and amplified by the internal signal-conditioning circuit, then forwarded via the DO pin to the next cascaded pixel. Each pixel in the chain extracts 24 bits, reducing the signal by 24 bits per stage. The pixels employ automatic signal reshaping and forwarding technology, so the number of cascadable pixels is not limited by signal degradation — only by signal transmission speed requirements. The port scan frequency of up to 2KHz ensures no flickering even when captured by high-definition cameras, making it ideal for high-speed moving applications. A RESET time of over 280μs prevents false resets during signal interruptions, enabling support for lower-frequency, low-cost MCUs. The LED offers the advantages of low-voltage drive, environmental friendliness and energy efficiency, high brightness, excellent consistency, 120° beam angle, ultra-low power consumption, and extremely long lifespan. Integrating the control circuit directly onto the LED simplifies the overall circuit design, reduces the footprint, and eases installation.

Features

• Shared power supply for IC control circuit and LED point light source
• 5mA operating current per channel
• Control circuit and RGB die integrated in a 2121 package, forming a complete externally-controlled pixel
• Built-in signal reshaping circuit — each pixel reshapes the waveform before output, preventing cumulative signal distortion along the line
• Built-in power-on reset and power-down reset circuits
• 256-level brightness per primary color per pixel, enabling full true-color display with 16,777,216 colors
• Port scan frequency: 2KHz
• Serial cascade interface — data reception and decoding via single signal line
• Cascade count ≥1024 pixels at 30 fps refresh rate
• Data transmission speed up to 800Kbps
• High color consistency, excellent cost-performance ratio
• Ultra-compact 2.1×2.1×1mm (height)

Applications

• LED transparent screen
• LED pixel screen
• LED shaped screen
• LED point light source
• Consumer electronics