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worldsemi WS2811G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- worldsemi WS2811G
- Type
- WORLDSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- WORLDSEMI
- Electronic Component
- WS2811G
- Electronic Component
- 1
- Package
- SOP-8-1.7mm-0.8mm
- Electronic Component
- LEDDriver
- Electronic Component
- PWM
- Electronic Component
- 0.041g
- Electronic Component
- 1
- Channel Count
- 3
- Features
- (OVP)
- Electronic Component
- BM0265741790
- Operating Temperature
- 40℃~+85℃
- Output Current
- 9mA
- Operating Voltage(DC)
- 3.5V~5.7V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WS2811G 智能LED驱动芯片产品概述
一、产品定位与核心价值
WS2811G是Worldsemi（世界半导体） 推出的一款3通道LED驱动芯片，专为小功率RGB LED模组、氛围灯等场景设计，核心聚焦「高集成度、宽适配性、高可靠性」三大价值，满足消费电子、工业照明等领域对LED驱动的轻量化、稳定化需求。
二、关键技术参数解析
该芯片核心参数覆盖电源、输出、保护等关键维度，具体如下：
参数类型 具体参数 说明 工作电压 DC 3.5V ~ 5.7V 兼容锂电池（3.7V）、USB（5V）等常见电源 驱动通道数 3通道（RGB） 同步驱动红、绿、蓝三基色LED 单通道输出电流 9mA（典型值） 适配小功率LED，无需额外限流电阻 调光方式 PWM数字调光 占空比可调，调光线性度好，无频闪 保护功能 内置过压保护（OVP） 输入电压过高时自动关断输出，保护LED 工作温度范围 -40℃ ~ +85℃ 工业级温宽，适应高低温环境 封装规格 SOP-8-1.7mm-0.8mm 小外形贴片封装，引脚间距0.8mm，高度1.7mm三、封装与引脚适配性
WS2811G采用SOP-8（小外形封装），尺寸紧凑（高度1.7mm，引脚间距0.8mm），适合自动化贴片生产，可显著节省PCB布局空间，尤其适配小型化LED产品（如迷你氛围灯、便携灯串等）。
其引脚功能围绕「电源输入、数据传输、LED驱动」设计，支持单线级联（DIN输入、DOUT输出），可实现多芯片串联控制，降低布线复杂度，适合大规模LED阵列应用。
四、典型应用场景
结合参数特性，WS2811G广泛适用于以下场景：
- LED装饰照明：室内外RGB串灯、模组灯、节日灯等；
- 智能氛围灯：车载氛围灯、桌面氛围灯、智能台灯（RGB版）；
- 小型显示屏：迷你LED点阵屏、小尺寸LED广告牌；
- 消费电子配件：玩具LED、礼品灯、便携充电宝附灯；
- 工业辅助照明：设备状态指示灯（RGB三色指示）。
五、可靠性与保护机制
- 过压保护（OVP）：内置OVP电路，当输入电压超过芯片设计阈值时，自动切断LED驱动输出，避免因电源波动导致LED烧毁或芯片损坏；
- 宽温适配：-40℃~+85℃的工作温度范围，可稳定运行于低温（如北方户外）、高温（如车载中控台）环境；
- 抗干扰设计：PWM数字调光采用数字信号控制，抗电磁干扰能力强，适合复杂电磁环境（如车载、工业现场）。
六、应用优势总结
WS2811G在同类产品中具备以下核心优势：
- 电源兼容性强：3.5V~5.7V宽电压范围，无需额外电源转换电路，降低系统成本；
- 集成度高：3通道同步驱动+内置OVP，减少外围元件数量；
- 调光体验好：PWM调光线性度高，可实现0~100%亮度平滑调节，无频闪问题；
- 小型化适配：SOP-8小封装，满足产品轻薄化设计需求；
- 可靠性稳定：工业级温宽+过压保护，延长产品使用寿命。
综上，WS2811G凭借高性价比、宽适配性及稳定可靠性，成为小功率RGB LED驱动场景的优选芯片。
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