اپتوالکترونیک ال ای دی آدرس‌پذیر و ویژه

Product Attributes

Introduction

T73 is an intelligent externally-controlled LED light source with integrated control and illumination circuits, measuring 4.0×1.7×2.0mm, classified as a 0.08W SMD LED device. Each component serves as a single pixel, internally integrating a smart digital interface with data latch, signal shaping and amplification drive circuit, power regulation circuit, built-in constant current circuit, and high-precision RC oscillator. The output drive employs patented PWM technology to effectively ensure color consistency across pixels. The data protocol uses unipolar return-to-zero communication. After power-on reset, each pixel receives data from the controller via the DIN pin — the first 24-bit data is extracted and latched by the first pixel, while the remaining data is reshaped, amplified internally, and forwarded to the next cascaded pixel through the DO port, with the signal reduced by 24 bits per pixel transmission. This LED offers the advantages of low-voltage drive, eco-friendliness and energy efficiency, high brightness, wide scattering angle, excellent consistency, ultra-low power consumption, and ultra-long lifespan. The integrated control circuit simplifies the application circuit, reduces the overall footprint, and makes installation more convenient.

Features

• Integrated high-quality externally-controlled single-wire serial cascading constant-current IC
• Control circuit and die integrated in SMD4018 package, forming a complete externally-controlled pixel with uniform and consistent luminous effect
• Built-in data reshaping circuit; each pixel reshapes received signal waveform before output, preventing accumulated line waveform distortion
• Built-in power-on reset and power-off reset circuits; default power-on state is lights off
• Integrated 256-level adjustable grayscale circuit
• Special processing applied to red channel drive for more balanced color matching
• Single-wire data transmission with unlimited cascading support
• Reshaping-and-forwarding enhancement technology; transmission distance between two nodes exceeds 10 meters
• Data transmission rate up to 800Kbps; at 30 frames/sec refresh rate, cascadable nodes no less than 1024

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