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WS2811M是世芯微电子(Worldsemi)推出的3通道小功率LED恒压驱动IC,专为紧凑空间内的RGB LED照明/显示场景设计,采用MSOP-8封装,兼顾高集成度、低功耗与工业级可靠性,适配多种主流电源与环境温度。
电源与控制
工作电压范围为DC 3.5V~5.5V,兼容5V USB、3.7V锂电池等常见电源,无需额外电压转换;调光方式为PWM数字调光,支持0-100%线性调光,无颜色偏移与频闪问题,可精准匹配不同亮度需求。
驱动能力
3通道独立输出,单通道最大输出电压20V(满足2-6颗串联LED的电压需求),单通道最大输出电流16.5mA,适合小功率RGB LED模组、短串LED或单颗LED的驱动。
开关特性
内置800kHz高频开关,可显著缩小外围电感、电容的体积,同时降低电磁干扰(EMI),符合多数产品的电磁兼容要求,简化系统EMC设计。
环境适应性
工作温度范围-25℃~+85℃,覆盖工业级温宽,可稳定工作于户外低温(如北方冬季-20℃)、高温(如南方夏季+80℃)环境,提升产品可靠性。
采用MSOP-8封装(尺寸约3.0mm×3.0mm),为贴片式无铅封装,兼容回流焊工艺;引脚布局紧凑,可节省PCB板空间(比传统DIP封装节省约60%面积),适合智能穿戴、便携音箱等小型化产品设计。
WS2811M的参数特性使其适配多种细分场景:
WS2811M凭借高集成度、宽电压适配、工业级温宽与紧凑封装,成为小功率RGB LED驱动的高性价比选择,广泛适配消费电子、户外照明与显示等领域的设计需求,可有效降低系统成本与空间占用。
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WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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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.
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