WS2812C-4020 Intelligent External Control Integrated LED Light Source

The WS2812C-4020 is a sophisticated smart LED light source that integrates control circuitry with the LED itself, creating a self-contained pixel point. This advanced component is designed for high-performance applications that require precise color control and energy efficiency.

Key Features:

Unified power supply for IC control circuit and LED point light source.
RGB chip and control circuit integrated in a compact 4020 package.
Built-in signal shaping circuit ensures distortion-free transmission across the chain.
Integrated power-on and power-off reset circuits.
Each pixel supports 256 levels of brightness, enabling 16.7 million true color displays.
Serial cascading interface with data transmission speeds up to 800Kbps.
Capable of 1024 points cascading at a refresh rate of 30 frames per second.
Highly consistent light color and cost-effective.
Reverse polarity protection for the power supply.
Primary Applications:

Consumer electronics.
LED lighting for beautification.
Computers and peripherals, gaming devices, and various electrical appliances.
Product Overview:
The WS2812C-4020 is an intelligent external control LED light source where each unit acts as an individual pixel. It contains a smart digital interface, data latching, signal shaping, and amplification circuitry, along with a high-precision internal oscillator and programmable constant current control. This ensures a high degree of color consistency across pixels. The data protocol uses a single-wire reset code communication method, allowing for data reception and decoding through a single signal line.

Mechanical Dimensions:

Top View and Side Views are provided in the diagram.
Recommended Pad Design:

Detailed pad dimensions and specifications are included.
Pin Functions:

DIN - Data Input for control signals.
VDD - Power supply pin.
DOUT - Data Output for cascading signals.
VSS - Ground for signal and power.
Maximum Ratings:

Supply voltage (VDD): 3.7V to 5.3V.
Logic input voltage (VI): -0.3V to VDD + 0.7V.
Electrical Characteristics:

Propagation delay time, input capacitance, input current, high and low level inputs are specified with typical and maximum values.
LED Characteristics:

Intensity, static current, and wavelength for Red, Green, and Blue LEDs are detailed.
Data Transmission Timing:

Specific timings for 0 and 1 code high and low levels, and frame unit low level are provided.
24-bit Data Structure:

The structure is outlined with G (Green), R (Red), and B (Blue) components in a specific order.
Typical Application Circuit:

A recommendation for a filtering capacitor between VDD and GND is provided.
Surface Mount LED Usage Precautions:

Detailed instructions for handling, cleaning, and SMT process are given.
SMT Requirements:

Specific temperature and time recommendations for pre-baking and post-baking processes.
Soldering:

Adherence to JEDEC J-STD-020C standards and recommended soldering temperature curves.
Handling and Assembly:

Guidelines for safe handling and assembly to prevent damage to the internal circuitry.
Document Revision History:

A record of document revisions, including dates and responsible parties.