WS2812D-F8: Intelligent External Control Integrated LED Light Source

Overview:
The WS2812D-F8 is an innovative smart LED light source that integrates a control circuit with an LED point light source, designed for applications requiring vibrant color displays and energy efficiency.

Key Features:

Unified Power Supply: The IC control circuit and LED share a single power source.
Integrated RGB Chip: Encapsulated in an 8mm diameter round head four-pin plug-in component, forming a complete external control pixel point.
Signal Reshaping: Built-in signal reshaping circuit ensures waveform distortion does not accumulate along the transmission line.
Reset Circuits: Equipped with power-on and power-off reset circuits.
Color Display: Each pixel's RGB can achieve 256 levels of brightness, enabling 16.7 million colors for full true color display with a scanning frequency of at least 400Hz/s.
Serial Cascading Interface: Capable of receiving and decoding data through a single signal line.
Transmission Distance: No additional circuitry needed for transmission distances up to 2 meters between any two points.
Cascading Capability: Supports a minimum of 2048 points at a 30 fps refresh rate.
Data Transfer Rate: Up to 800Kbps.
Consistency and Cost-Effectiveness: The light color is highly consistent with a high cost-performance ratio.
Applications:

Suitable for LED full-color letter light strings, LED full-color modules, LED full-color soft and hard light bars, LED guardrail tubes.
Ideal for LED point light sources, LED pixel screens, LED irregular screens, and marquees for various electronic products and electrical equipment.
Technical Specifications:

Mechanical Dimensions and Pin Diagram:

Detailed pin functions and mechanical dimensions are provided in the accompanying diagrams.
Pin Functions:

Dout - Data Out for control data signal output.
VDD - Power Supply for power supply.
GND - Ground for signal and power grounding.
Din - Data In for control data signal input.
Absolute Maximum Ratings:

Power supply voltage (VDD): +3.5 to +5.3 V.
Logical Input Voltage (VI): -0.5 to VDD + 0.5 V.
Operating Junction Temperature (Topt): -25 to +80 ℃.
Storage Temperature Range (Tstg): -55 to +150 ℃.
Electrical Parameters:

Input Current (II): ±1 µA.
High-Level Input (VIH): 0.7VDD.
Low-Level Input (VIL): Up to 0.3 VDD.
Propagation Delay Time (tPLZ): 300 ns (CL=15pF, DIN→DOUT, RL=10KΩ).
Fall Time (tTHZ): 120 µs (CL=300pF, OUTR/OUTG/OUTB).
LED Light Chip Parameters:

Oscillation Frequency (Fosc): 600 KHz.
Timing Waveform Diagram:

Data Transfer Times for 0 and 1 codes (T0H, T1H, T0L, T1L) and Reset Time (RES) are detailed.
Data Transmission Method:

The initial 24-bit data is sent by the MCU, with subsequent data transmitted through internal signal reshaping and amplification.
24-bit Data Structure:

The data is transmitted in the order of GRB, with the most significant bit first.
Typical Application Circuit:

A schematic diagram with component titles and values is provided for typical applications.