WMSIC Electronic Components

worldsemi WS2812S

ModelWS2812S
PackageSMD5050
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 WS2812S
Type
WORLDSEMI
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2812S
Electronic Component
1
Electronic Component
5mm
Package
SMD5050
Electronic Component
G:520nm~530nm;B:465nm~475nm;R:620nm~630nm
Electronic Component
RGB LED(Built-in IC)
Electronic Component
0.157g
Electronic Component
5.4mm
Electronic Component
1.57mm
PWMFrequency
2kHz
Electronic Component
1
Features
Built-in positions; Built-in; Built-in positions
LED
R:650mcd;B:350mcd;G:1250mcd
Electronic Component
BM0264717344

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

WS2812S 可编程 RGB LED(Worldsemi)产品概述

一、产品简介

WS2812S 是一款集成了 RGB 发光二极管与数字控制驱动器的智能可编程 SMD 发光器件,由 Worldsemi 推出。器件采用 SMD5050 / PLCC6 封装,透明透镜设计,尺寸约为 5.4 × 5.0 × 1.57 mm(典型标注 5×5×1.6 mm),在单颗芯片内实现 24 位色深(16.7M 色)控制,便于串联级联并实现高密度像素矩阵或线性灯带等应用。

二、主要技术规格

  • 波长(典型峰值范围):
    • G(绿):520 nm ~ 530 nm
    • B(蓝):465 nm ~ 475 nm
    • R(红):620 nm ~ 630 nm
  • 发光强度(典型值):R = 650 mcd;B = 350 mcd;G = 1250 mcd
  • PWM 频率:2 kHz(用于亮度调制与灰度控制)
  • 数据速率:800 kbit/s(单线串行数据输入)
  • 工作电压:4.5 V ~ 5.5 V(推荐 5 V 系统)
  • 静态电流:0.7 mA(全暗待机状态典型值)
  • 工作温度:-20 ℃ ~ +70 ℃
  • 尺寸:长度 5.4 mm;宽度 5.0 mm;高度 1.57 mm(SMD5050 标准)
  • 封装/版本:SMD5050 / PLCC6,透明透镜;三色版本,支持 16.7M 色
  • 内部功能特性:内置上电复位电路、内置单向传输功能、内置掉电复位电路

三、功能特点与工作原理

  • 单线串行控制:WS2812S 使用单线数据协议(800 kbps),通过时序编码实现 24 位(8 位 R、8 位 G、8 位 B)颜色数据传输。器件支持单向传输,便于多个 LED 串联级联。
  • 内置驱动与复位保护:内部集成上电复位和掉电复位电路,保证在电源波动或上电瞬间的数据与状态稳定,降低控制器端处理复杂度。
  • 可编程色彩与灰度:通过 PWM 控制实现灰度调节,典型 PWM 频率为 2 kHz。可输出 16.7M 色,适合彩色显示、动画效果与细腻亮度过渡。
  • 小体积、高集成度:SMD5050 封装配合透明透镜,便于光学布局与封装密度提升,可用于点阵屏、灯带、装饰照明等场景。

四、典型应用场景

  • 可编程灯带与线性照明:自带串联单向数据接口,适合大长度灯带或像素化装饰。
  • 点阵与显示屏:用于 LED 点阵屏、动态图形与信息显示,支持逐像素控制。
  • 舞台与娱乐照明:实现动态色彩变化与动画效果。
  • 智能家居与物联网设备:用于状态指示、气氛灯与交互式照明。
  • 可穿戴设备与模型灯光:小体积封装利于空间受限的方案。

五、设计与使用注意事项

  • 电源与旁路:器件对 5 V 电源敏感,建议为每段灯带配备合适的去耦电容(典型建议在电源入口使用 100 µF 电解 + 0.1 µF 陶瓷旁路),并在长距离布线时考虑分段供电与电压降问题。
  • 数据线匹配与保护:数据线建议加小阻值串联(常见 220–470 Ω)以抑制反射与过冲;尽量避免长时空闲状态下数据线悬空。
  • 接地与 EMI:确保良好地线回流,减少高频 PWM 产生的干扰,必要时添加滤波与屏蔽。
  • 散热与电流预算:虽然单颗静态电流低,但全亮时功耗会随亮度与颜色组合显著增加,设计时按最大亮度/颜色组合估算整机电流并预留余量。
  • ESD 与可靠性:在贴装与调试过程中注意静电防护与焊接温度控制,避免高温或湿热环境长期影响器件寿命。

六、封装与机械信息

  • 封装类型:SMD5050(PLCC6 引脚形式),透镜透明,利于后续光学扩散或配合外部光学件。
  • 尺寸公差:实际生产件尺寸请参考厂商机械图纸(5.4 × 5.0 × 1.57 mm 为典型值),PCB 开窗与焊盘布局应严格按照推荐封装焊盘设计以保证贴装良率。

七、小结

WS2812S(Worldsemi)为高集成度、易级联的可编程 RGB LED 器件,适用于需要逐像素控制与丰富色彩表现的照明与显示应用。其内置复位与单向传输等功能简化了系统设计,但在供电、布线与电流管理等方面仍需谨慎规划以保证稳定运行和长寿命。针对量产或关键应用,建议参考 Worldsemi 的详细数据手册与机械图并进行实测验证。

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