اپتوالکترونیک ال ای دی آدرس‌پذیر و ویژه

Product Attributes

Introduction

This device is an intelligent externally-controlled LED light source integrating control circuitry and illumination circuitry into a single unit, with the same form factor as a 1209 LED. Each component constitutes one pixel. The pixel internally integrates a smart digital interface data latch, signal reshaping and amplification drive circuit, power regulation circuit, built-in constant current circuit, and high-precision RC oscillator. The output drive employs patented pulse width modulation technology, effectively ensuring color consistency across pixels. The data protocol uses unipolar return-to-zero code communication. After power-on reset, the data input of each pixel receives data transmitted from the controller. The first 24 bits of incoming data are extracted by the first pixel and loaded into its internal data latch; the remaining data is reshaped and amplified by the internal signal conditioning circuit, then forwarded via the data output port to the next cascaded pixel. With each pixel transmission, the signal is reduced by 24 bits. The LED offers the advantages of low-voltage drive, environmental friendliness and energy efficiency, high brightness, wide scattering angle, excellent consistency, ultra-low power consumption, and ultra-long lifespan. Integrating the control circuit directly onto the LED results in a simpler circuit, smaller footprint, and easier installation.

Features

• Internally integrated high-quality externally-controlled single-wire serial cascading constant-current IC
• Control circuit and die integrated in SMD3513 package, forming a complete externally-controlled pixel with uniform and consistent output
• Built-in data reshaping circuit; signal received at any pixel is reshaped before forwarding, preventing accumulation of waveform distortion along the line
• Built-in power-on reset and power-off reset circuits; LEDs default to OFF at power-up
• Integrated grayscale adjustment circuit (256-level grayscale)
• Red channel driver with special processing for more balanced color mixing
• Single-wire data transmission with unlimited cascading
• Reshaping and forwarding enhancement technology; transmission distance between two nodes exceeds 10 meters
• Data transmission rate up to 800 Kbps; at a refresh rate of 30 frames/second, cascade count no less than 1024 pixels

Applications

• LED full-color luminous letter light strings
• LED full-color modules
• LED magic color flexible/rigid light strips
• LED guardrail tubes
• LED landscape/scene lighting