WS2816B-2427: 16Bit 3-Channel Constant Current Digital LED Light Source

Overview:
The WS2816B-2427 is a new generation of digital LED developed by World Semi specifically for high-definition imaging applications. Each channel supports up to 16-bit grayscale data and incorporates a 4-bit gamma correction, achieving a 20-bit display effect. With a port refresh rate of up to 10kHz and an RGB color ratio of 3:6:1, it is highly suitable for large display screen image display.

Key Features:

Integrated Power Supply: The IC control circuit shares a single power source with the LED point light source.
Compact 2427 Package: The control circuit and RGB chips are integrated into one component, forming a complete external control pixel point.
Signal Reshaping: Built-in signal reshaping circuit ensures no waveform distortion accumulation.
Reset Circuits: Includes power-on and power-off reset circuits.
High Integration: No external electronic components, including capacitors, are required.
High Gray Levels: OUT R/G/B output grayscale levels: 65536 levels (with built-in 4Bit GAMMA correction).
Scanning Frequency: 10KHz port scanning frequency.
Serial Cascading Interface: Data reception and decoding through a single signal line.
Standard Brightness Ratio: Adheres to display standard 3:6:1 brightness ratio.
RGB Mixed White Light Color Temperature: 6500K±500.
Applications:

LED display screens (transparent screens, pixel screens, irregular screens).
Various electronic products.
Mechanical Dimensions and Pin Arrangement:

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

DIN - Data Input for control signal input.
VDD - Power Supply for power supply pin.
DOUT - Data Output for control signal output.
GND - Ground for signal and power grounding.
Absolute Maximum Ratings:

Power supply voltage (VDD): +3.3 to +5.5 V.
Logic input voltage (VI): -0.3V to VDD + 0.7 V.
Electrical Characteristics:

Transmission delay time (tPLZ): 300 ns.
Fall time (tTHZ): 120 µs.
Input capacitance (CI): 15 pF.
LED Characteristics:

Intensity: Red 210-360 mcd, Green 420-720 mcd, Blue 70-120 mcd.
Wavelength: Red 620-625 nm, Green 522-527 nm, Blue 467-472 nm.
Color coordinates: XY at 6500K±500.
Data Transmission Timing:

T0H (0 code, high level time): 200ns to 320ns.
T1H (1 code, high level time): 520ns to 800ns.
T0L (0 code, low level time): 800ns to 1.2µs.
T1L (1 code, low level time): 480ns to 1µs.
RES (frame unit, low level time): 280µs and above.
Data Transmission Method:

The initial 48-bit data is sent by the MCU, with subsequent data transmitted through internal signal reshaping and amplification.
48-bit Data Structure:

Data 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.
Surface Mount LED Usage Precautions:

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

Adherence to JEDEC J-STD-020C standard recommended.
Document Revision History:

Version 1.0: Initial release.