WMSIC Electronic Components

worldsemi WS2814A

ModelWS2814A
PackageSOP-8
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 25+

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Technical data

Product details

19 specifications

Core information

Product name
worldsemi WS2814A
Type
WORLDSEMI
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2814A
Electronic Component
1
Package
SOP-8
Type
DC-DC
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.156g
Electronic Component
1
Channel Count
4
Electronic Component
BM0264717357
Operating Temperature
25℃~+85℃
Output Voltage
20V
Output Current
16.5mA
Operating Voltage(DC)
5V~24V

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

WS2814A LED驱动器产品概述

一、核心性能参数

WS2814A是worldsemi推出的4通道LED恒流驱动器IC,核心参数精准适配中低端LED照明与显示场景:

  • 输入电压:支持5V~24V直流宽范围输入,兼容电池、开关电源、USB等多种供电方式;
  • 输出通道:4路独立恒流输出,可同步控制多组LED(如RGBW四色、多段灯带);
  • 输出特性:单通道最大输出电压20V(适配串联LED的总压降),恒定输出电流16.5mA(保证亮度一致性);
  • 调光方式:PWM数字调光,调光占空比0~100%可调,亮度线性度好;
  • 工作温度:-25℃~+85℃宽温范围,适应户外、工业等复杂环境;
  • 开关管:内置功率开关管,无需外置MOSFET,简化电路设计;
  • 封装:SOP-8贴片封装,体积小巧,便于PCB高密度布局。

二、主要功能特性

  1. 宽电压适配性:5V~24V输入覆盖12V/24V蓄电池、USB(5V)、工业电源等场景,无需额外降压/升压电路,降低系统成本;
  2. 恒流驱动稳定性:16.5mA恒定输出电流避免LED因电流波动导致的亮度不均或寿命衰减,保证发光一致性;
  3. PWM调光灵活性:支持PWM数字调光,调光频率可适配不同场景(如100Hz~1kHz),无频闪(取决于外部信号质量),满足亮度调节需求;
  4. 内置开关管简化设计:替代外置MOSFET,减少外围元件数量(仅需少量电阻、电容),缩小PCB面积,降低焊接复杂度与故障风险;
  5. 宽温可靠性:-25℃~+85℃符合工业级环境要求,可在寒冷户外(如庭院灯)或高温车间(如设备指示灯)稳定工作;
  6. 多通道同步控制:4路输出可同步驱动多组LED,实现同步亮灭与亮度调节,提升显示/照明效果。

三、典型应用场景

WS2814A的特性使其适用于以下主流场景:

  1. 室内照明:面板灯、筒灯、吸顶灯的多组LED驱动,通过PWM调光实现家居/商业空间的亮度调节;
  2. 装饰与景观照明:串灯、灯带、轮廓灯的多通道控制,4路输出可驱动不同颜色LED,实现动态装饰效果;
  3. 小间距显示屏:桌面显示屏、车载小屏的像素点驱动,保证亮度一致性;
  4. 工业控制:设备状态指示灯、控制面板背光,宽温范围适应工业环境温度变化;
  5. 便携照明:充电宝附带LED灯、户外便携灯,5V输入适配USB供电,24V上限支持高容量电池。

四、封装与可靠性优势

  1. SOP-8封装特点:贴片式封装体积小巧(引脚间距1.27mm),适合迷你灯带、微型显示屏等小型化产品;
  2. 集成度高:内置开关管、恒流电路,仅需少量外围元件即可实现完整驱动,降低BOM成本;
  3. 温度适应性:符合GB/T 2423工业级环境试验标准,长期工作稳定性可靠;
  4. 品牌背书:worldsemi作为专业LED驱动厂商,产品经过批量可靠性测试,售后故障率低。

总结

WS2814A以高性价比、电路简化、宽适配性为核心优势,是中低端LED照明与显示领域的实用型驱动方案,尤其适合对成本敏感、设计紧凑的产品(如迷你灯带、小型显示屏、工业指示灯)。

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