WMSIC Electronic Components

worldsemi WS2816B-2121 WS2816B

ModelWS2816B-2121
PackageSMD,2.2x2.2mm
BrandWORLDSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
worldsemi WS2816B-2121
Type
WORLDSEMI
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2816B-2121
Electronic Component
1
Electronic Component
1mm
Package
SMD,2.2x2.2mm
Electronic Component
G:522nm~527nm;R:620nm~625nm;B:470nm~475nm
Electronic Component
RGB LED(Built-in IC)
Electronic Component
0.032g
Electronic Component
2.1mm
Electronic Component
2.1mm
PWMFrequency
10kHz
Electronic Component
1
Features
Built-in positions
LED
R:285mcd;G:530mcd;B:90mcd
LED
120°

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

WS2816B-2121 产品概述

一、产品简介

WS2816B-2121 是世界半导体(worldsemi)出品的一款可编程全彩 RGB SMD 发光元件,封装采用 2121 规格,典型尺寸 2.2×2.2×1.05 mm(标称贴装尺寸约 2.1 mm),为小尺寸高集成的点阵或像素级照明解决方案。器件内置上电复位电路,支持 PWM 调光,适配灯带、像素屏、可穿戴光源以及小体积装饰照明等应用场景。

二、关键规格(典型/代表值)

  • 发光波长:R 620–625 nm;G 522–527 nm;B 470–475 nm
  • 发光强度(典型):R 285 mcd(规格范围 210–360 mcd);G 530 mcd;B 90 mcd
  • 驱动电压:3.3 V ~ 5.5 V(建议在数据手册推荐范围内选择)
  • 静态待机电流:约 0.8 mA(单颗,实际值视驱动状态而定)
  • PWM 频率:10 kHz(高频 PWM,肉眼无明显闪烁)
  • 发光角度:120°(宽视角,均匀出光)
  • 工作温度:-25 ℃ ~ +85 ℃
  • 封装形式:SMD(正贴/贴片安装)— 2121(2.2×2.2 mm)
  • 功能:内置上电复位电路,可编程(可与常见可寻址 RGB 驱动体系配合使用)

三、性能与优势

  • 小尺寸高集成:2121 小体积封装便于高密度像素排布,适合窄边框显示、曲面灯带等场景。
  • 高 PWM 频率:10 kHz 的 PWM 控制保证了平滑的亮度过渡和稳定的色彩混合,避免了闪烁感。
  • 宽工作电压:3.3–5.5 V 的兼容电压使其易于与 3.3 V MCU 或 5 V 系统直接配合。
  • 上电复位:内置上电复位电路提高系统启动稳定性,减少异常点亮风险。
  • 宽视角与色彩表现:120° 发光角度与三色组合可实现均匀的色彩混合与视感覆盖。

四、PCB 及驱动建议

  • 电源与去耦:在每颗芯片或每段像素起始处放置 0.1 µF 去耦电容,尽量靠近 VCC 引脚,保证瞬态电流供给。
  • 信号处理:若控制信号来自 3.3 V MCU 且系统供电为 5 V,可直接驱动(但请验证数据手册的逻辑门槛);如有需要可使用电平移位器以提高可靠性。
  • 数据线保护:建议在数据线上串联小阻(如 150–330 Ω)以抑制反射和上冲,且在长线或大规模像素阵列时考虑信号重复和中继。
  • 布局:焊盘设计应兼顾热散和焊接可靠性,注意走线避让光学区域,保持器件间适当间距以利散热及色彩混合。
  • 回流焊接:采用无铅回流工艺,遵循 IPC/JEDEC 回流曲线规范进行焊接,避免超时高温影响器件可靠性。

五、应用场景

  • 可编程灯带与像素点阵显示
  • 装饰照明与舞台小型像素单元
  • 可穿戴与便携式发光模块
  • 背光与指示灯场景(需注意亮度与视觉需求)

六、注意事项与可靠性

  • 工作环境:避免长期高温或潮湿环境,存储运输遵循防潮、防静电规范。
  • 功耗评估:实际功耗随工作色彩与驱动电流变化,应在设计阶段按最差工况(全亮白)评估电源与散热能力。
  • 生产一致性:器件有亮度等级范围(如红光 210–360 mcd),批次间存在分布差异,批量应用时建议做分级或色彩校正。

总结:WS2816B-2121 以其小型封装、内置复位及高 PWM 频率,适合高密度可编程照明和点阵显示应用。具体驱动、时序与封装管脚信息请参考 worldsemi 官方数据手册以获得完整设计与可靠性指导。

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