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worldsemi WS2813B-2121 WS2813B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- worldsemi WS2813B-2121
- Type
- WORLDSEMI
- Minimum package
- 4000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- WORLDSEMI
- Electronic Component
- WS2813B-2121
- Electronic Component
- 1
- Electronic Component
- 2.2mm
- Package
- SMD2121-6P
- Electronic Component
- R:620nm~625nm；G:520nm~525nm；B:465nm~470nm
- Electronic Component
- RGB LED(Built-in IC)
- Electronic Component
- 0.052g
- Electronic Component
- 2.2mm
- Electronic Component
- 1.05mm
- PWMFrequency
- 2kHz
- Electronic Component
- 1
- Features
- Built-in positions; Integrated; Built-in positions
- LED
- R:440mcd；B:220mcd；G:1000mcd
- Electronic Component
- BM0264717385
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WS2813B-2121 产品概述
一、概述
WS2813B-2121 是由 worldsemi 推出的智能外控 LED 器件，封装为 SMD2121-6P，尺寸仅 2.2mm × 2.2mm × 1.05mm。器件将控制电路与发光芯片高度集成，每个元件即为一个独立像素点，内置高精度振荡器与恒流控制模块，适用于高密度可寻址全彩照明方案（灯带、点光源、照明面板、舞台与装饰应用等）。
二、主要特性
- 波长（典型值）：R 620–625nm；G 520–525nm；B 465–470nm。
- 发光强度（典型值）：R 440mcd；G 1000mcd；B 220mcd。
- PWM 工作频率：2 kHz。
- 数据速率：800 kbit/s（兼容常见单线串行可寻址协议）。
- 工作电压：3.7V ～ 5.3V。
- 静态（待机）电流：0.5 mA（单像素）。
- 载带方式：正贴（Top-side）。
- 功能：内置上电复位、掉电复位与智能反向连接保护。
三、结构与功能说明
每个 WS2813B-2121 器件包含：数字接口与数据锁存电路、信号整形与放大驱动电路、反接保护电路、高精度内部振荡器以及恒流控制模块。此类设计可在输入电压波动或电源瞬变情况下保持色彩一致性与稳定亮度，降低像素间色差。
四、应用建议与注意事项
- 电源：建议使用稳定 5V 电源，器件可在 3.7–5.3V 范围工作。为保证可靠性，电源线上应加足够的去耦电容（如 0.1μF + 10μF 并联）。
- 信号完整性：数据速率 800kbit/s，长线布线或多像素链路建议做好终端匹配与屏蔽，必要时增加电平转换电路以匹配主控电平。
- 热管理：虽为小尺寸封装，但在高亮度或密集布置下需注意散热与 PCB 铜箔面积，避免长期高温影响寿命与色度稳定。
- 反向保护：器件内置反向连接保护，但仍建议在设计与装配时严格按正向接线规范操作，降低异常损坏风险。
五、优势与适用场景
- 优势：高度集成、色彩一致性好、支持像素级寻址与高刷新、具备上/掉电复位与反接保护，适合微型化与高密度阵列设计。
- 适用场景：智能灯带、像素屏、建筑与城市照明装饰、舞台效果灯、穿戴式光源与消费电子背光等需要可寻址 RGB 像素的场合。
六、品牌与封装
- 品牌：worldsemi
- 型号：WS2813B-2121
- 封装：SMD2121-6P（2.2 × 2.2 × 1.05 mm）
总结：WS2813B-2121 以小体积、高集成度与可靠的自保护功能，为高密度全彩点光源设计提供了稳定、易用的像素解决方案。根据具体项目可在电源滤波、信号布线与散热方面做针对性优化，以获得最佳显示与可靠性表现。
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