Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
worldsemi WS2811C
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- worldsemi WS2811C
- Type
- WORLDSEMI
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- WORLDSEMI
- Electronic Component
- WS2811C
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- LEDDriver
- Electronic Component
- PWM
- Electronic Component
- 0.15g
- Electronic Component
- 1
- Channel Count
- 3
- Electronic Component
- BM0264678321
- Operating Temperature
- 25℃~+85℃
- Switching Frequency
- 800kHz
- Output Voltage
- 20V
- Output Current
- 32mA
- Operating Voltage(DC)
- 3.5V~5.5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
世微半导体WS2811C LED驱动芯片产品概述
一、产品定位与核心价值
WS2811C是世微半导体（Worldsemi）推出的集成式3通道LED驱动芯片，专为小功率LED照明、显示及指示场景设计。其核心优势在于内置功率开关管，无需外置MOSFET，可大幅简化电路设计、降低BOM成本，同时兼顾宽电压兼容性与工业级可靠性，适合对体积、成本敏感的消费电子、智能照明等领域。
二、关键性能参数解析
WS2811C的参数设计针对性强，覆盖主流LED驱动需求：
- 宽电压输入：3.5V~5.5V，兼容5V USB、3.7V锂电池等常见供电方式，无需额外电源转换，直接适配多种终端；
- 高频开关：800kHz开关频率，远高于人眼感知阈值（>100Hz），彻底消除视觉频闪，且高频可减小电感/电容体积，利于产品小型化；
- 3通道输出：支持RGB三色LED或3组单色LED串联，满足多色彩显示/多组指示需求；
- 输出能力：单通道最大20V输出电压（可驱动6~7颗2.8V白光LED串联），32mA最大电流，满足小功率LED亮度要求；
- 内置开关管：省去外置MOS，降低BOM成本15%~20%，同时减少PCB空间，提升电路可靠性。
三、调光特性与控制方式
WS2811C采用PWM调光，调光范围0%~100%，调光过程中LED电流线性稳定，无色温偏移（区别于模拟调光的电流波动）。调光频率与开关频率同步，避免额外电磁干扰，适合氛围灯、显示屏背光等精准亮度控制场景。
四、封装与环境适应性
- SOP-8封装：尺寸紧凑（约5.2mm×6.0mm），兼容自动贴装，适配耳机充电盒、智能音箱等小型产品；
- 宽温范围：-25℃~+85℃工业级温度，稳定运行于户外景观灯、车载内饰灯等高低温环境，抗环境变化能力强。
五、典型应用场景
WS2811C适配多种场景：
- RGB氛围灯：桌面灯、汽车内饰灯（3通道支持色彩渐变）；
- 小功率显示：LED条屏、模组屏（串联驱动实现大尺寸显示）；
- 智能照明：可调光台灯、夜灯（PWM调光精准控亮）；
- 消费电子指示：耳机充电盒、智能音箱的状态指示灯；
- 户外景观：LED串灯、建筑轮廓灯（宽温适应季节变化）。
六、核心优势总结
WS2811C的竞争力体现在：
- 高集成度：内置开关管简化电路；
- 成本优势：减少外围元件，降低BOM成本；
- 视觉体验：无频闪、PWM调光无色彩偏移；
- 可靠性：工业级温度+SOP-8封装抗干扰；
- 兼容性：宽电压适配多种供电方式。
该芯片是小功率LED应用中性价比与性能平衡的优选方案，可快速落地各类终端产品。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
