📌 Product Overview
The XL-2020RGBC-WS2812B is a 2020 package surface-mount device (SMD) that integrates a high-quality RGB LED chip with a built-in WS2812B control IC. This "all-in-one" architecture eliminates the need for external circuitry, utilizing a single-wire cascade protocol to control color and brightness individually.
💡 Design focus is centered on miniaturization and SMT efficiency. With an outline of 2.0x2.0x0.65mm, it supports high-density pixel arrays while maintaining a 120-degree viewing angle, making it suitable for complex lighting matrices and guardrail tubes.
🎯 Typical Applications
Based on its 2020 form factor and integrated driver characteristics, the XL-2020RGBC-WS2812B is optimized for applications requiring high pixel density and simplified wiring:
- LED Full-Color Modules & Luminous Characters: Ideal for signage where space constraints require compact, cascadable light sources.
- Magic Color Light Strips: Used in soft and hard strip lighting for architectural or decorative purposes.
- Electronic Equipment Indicators: Suitable for running lights (marquee effects) on consumer appliances and devices.
- Scene & Ambient Lighting: Effective for mood lighting systems requiring consistent RGB mixing.
- Irregular/Shaped LED Screens: Supports creative display configurations due to its small footprint.
⚙️ Key Technical Specifications
The device utilizes optimized pre-set 5mA/channel constant current driving to ensure color consistency and maximize the number of cascaded LEDs on a single power line.
| Parameter | Test Conditions | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | Normal Operation | 3.5 | - | 5.5 | V |
| R/G/B Drive Current | Constant Current Mode | - | 5 | - | mA |
| Data Transfer Speed | fDATA | - | 800 | - | Kbps |
| PWM Frequency | Output Port Control | - | 1.5 | - | KHz |
| Light Intensity (IV) | Green (Typical) | 200 | - | 400 | mcd |
| Viewing Angle | 2θ1/2 | - | 120 | - | Deg |
💡 The built-in data reshaping technology ensures signal integrity when cascading over 1024 points at a 30fps refresh rate.
⚠️ Absolute Maximum Ratings & Process Limits
Adhering to these limits is critical for preventing thermal runaway and ensuring long-term reliability during infrared reflow soldering processes.
| Parameter | Symbol | Limits | Unit | Notes |
|---|---|---|---|---|
| Supply Voltage | VDD | 3.5 - 5.5 | V | Operating range |
| Logic Input Voltage | VDI | −0.5 ~ VDD+0.5 | V | Max tolerance |
| Output Port Withstand Voltage | VOUT | 13 | V | Protection limit |
| Operating Temperature | Topr | -40 ~ +85 | °C | Ambient range |
| Storage Temperature | Tstg | -40 ~ +85 | °C | Non-operating |
| Reflow Soldering | Tsol | 260 | °C | Max 6 Seconds |
| ESD Sensitivity | ESD | 2000 | V | HBM Model |
🔒 Moisture Sensitivity: The component is classified at MSL 5, requiring specific handling and pre-bake procedures prior to SMT reflow to prevent popcorning or delamination.
📦 Package, Dimensions & Assembly Notes
- Package Type: 2020 SMD (2.0mm x 2.0mm footprint).
- Dimensions: The outline profile is strictly 2.0 x 2.0 x 0.65mm (LxWxH), aiding in low-profile assembly designs.
- Colloid: Transparent epoxy resin for high light transmittance.
- Assembly: Designed for automatic SMT placement and infrared reflow soldering processes.
- Packaging: EIA standard compliant packaging for compatibility with standard feeders.
✨ Design Note: The built-in low-voltage reinforcement module guarantees 100% functionality when VDD is above 4.5V, reducing dropout risks in long chains.
🚀 Sourcing & Supply Considerations
- Authenticity Verification: Cross-reference the model "XL-2020RGBC-WS2812B" and branding to ensure compliance with ROHS directives.
- MSL Handling: Confirm storage conditions at the receiving dock; MSL Level 5 parts require adherence to the floor-life spec (typically 48 hours) before reflow.
- Yield Rates: Evaluate binning consistency for wavelength (Red: 620-630nm, Green: 520-530nm, Blue: 465-475nm) to ensure uniform color temperature across batches.
- Procurement: Available in EIA standard packaging quantities to facilitate high-volume automated production runs.
❓ FAQ
Q: What is the advantage of the integrated WS2812B IC in this package?
A: The integration allows for a single-wire data transmission protocol, significantly reducing the PCB footprint and wiring complexity compared to discrete LED + controller solutions.
Q: How many LEDs can be cascaded in a single string?
A: The data transmission frequency of 800Kbps supports refresh rates of 30fps for chains of at least 1024 points without signal degradation, thanks to the built-in signal reshaping technology.
Q: Is this component suitable for high-volume pick-and-place assembly?
A: Yes, it is specifically designed for SMT automatic production with EIA standard packaging and an outline size of 2.0x2.0mm.
Q: What precautions are necessary for reflow soldering?
A: The device is rated for a maximum of 260°C for 6 seconds. Given its MSL 5 rating, it must be stored in a dry environment and baked according to IPC/JEDEC standards if exposed to ambient humidity for extended periods.
Q: How is color consistency maintained across the array?
A: The IC uses high-precision constant current control (intra-chip error <1.5%, inter-chip error <3%) and pre-separated RGB chips to ensure uniform light output and pure white balance.
