اپتوالکترونیک ال ای دی آدرس‌پذیر و ویژه

Product Attributes

Introduction

T71 is an intelligent externally-controlled LED light source that integrates the control circuit and the light-emitting circuit into a single component. Its form factor is identical to a 4018 LED, with each component representing one pixel. Each pixel internally integrates an intelligent digital interface data latch signal reshaping 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 (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 stored in its internal data latch; the remaining data is reshaped and amplified by the internal signal reshaping circuit, then forwarded via the DO port to the next cascaded pixel. With each pixel transmission, the signal is reduced by 24 bits. The LED offers advantages including 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 into the LED results in a simpler circuit, smaller footprint, and easier installation.

Features

• Integrated high-quality externally-controlled single-wire serial cascade constant-current IC
• Control circuit and die integrated in SMD4018 package, forming a complete externally-controlled pixel with uniform and consistent output
• Built-in data reshaping circuit; signal received by any pixel is reshaped before forwarding, preventing waveform distortion accumulation along the line
• Built-in power-on reset and power-off reset circuits; LEDs off by default at power-up
• Grayscale adjustment circuit (256-level grayscale)
• Special processing for red channel driver for more balanced color mixing
• Single-wire data transmission with unlimited cascade capability
• Reshape-and-forward enhancement technology; transmission distance between two points exceeds 10 meters
• Data transmission rate up to 800 Kbps; cascade count no less than 1024 pixels at 30 frames/second refresh rate

Applications

• LED full-color channel letter light strings
• LED full-color modules
• LED magic color flexible/rigid light strips
• LED guardrail tubes
• LED landscape/scene lighting
• LED point light sources
• LED pixel displays
• LED custom-shaped displays
• PC case fan ambient lighting