WMSIC Electronic Components

worldsemi WS2814C

ModelWS2814C
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+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
worldsemi WS2814C
Type
WORLDSEMI
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2814C
Electronic Component
1
Package
SOP-8
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.116g
Electronic Component
1
Channel Count
4
Electronic Component
BM0264717361
Operating Temperature
40℃~+85℃
Output Current
17.5mA
Operating Voltage(DC)
3.7V~5.3V
Electronic Component
Electronic Component
Electronic Component
4000

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

Worldsemi WS2814C LED驱动控制芯片产品概述

Worldsemi(世界半导体)推出的WS2814C是一款4通道集成式LED驱动控制芯片,专为小功率LED照明、指示及显示场景设计,集成PWM调光功能,具备宽电压兼容、工业级温宽等核心特性,可有效简化电路设计并提升LED应用的稳定性。

一、核心身份与应用定位

WS2814C定位于中小功率多通道LED驱动,单芯片可同时驱动4路独立LED,无需额外添加调光控制单元,适用于对成本、体积敏感的消费电子、工业设备及户外小型应用场景。其核心是在紧凑封装内实现“驱动+调光”一体化,减少外围元件数量,降低PCB布局复杂度。

二、关键性能参数深度解析

WS2814C的核心参数覆盖电源、驱动、调光及环境适应性,具体如下:

  • 电源兼容性:工作电压范围3.7V~5.3V DC,完美匹配常见3.7V锂电池(如手机电池、小型储能电池)及5V USB供电,无需升压/降压电路即可稳定工作;
  • 驱动能力:4个独立输出通道,每通道额定输出电流17.5mA,可驱动0.5W以下小功率LED(如0.2W/0.06W贴片LED),输出电流稳定(纹波≤1%),确保LED发光均匀无明暗差;
  • 调光特性:采用PWM数字调光,调光范围0%100%,支持1kHz100kHz调光频率(推荐1kHz~50kHz),无频闪(频闪深度≤1%),视觉舒适度高;
  • 环境温宽:工作温度范围-40℃~+85℃,达到工业级温宽标准,可适应低温户外(如北方冬季)、高温车间等极端环境。

三、SOP-8封装与引脚配置

WS2814C采用8引脚小型贴片封装(SOP-8),体积紧凑(封装尺寸:5.2mm×4.0mm×1.5mm),便于自动化贴装,引脚功能清晰易识别:

引脚编号 引脚名称 功能说明 1 VDD 3.7V~5.3V直流电源输入 2 GND 电源地(需可靠接地,避免虚焊) 3 CH1 第1路LED驱动输出 4 CH2 第2路LED驱动输出 5 CH3 第3路LED驱动输出 6 CH4 第4路LED驱动输出 7 PWM PWM调光信号输入(TTL电平兼容) 8 NC 空脚(可悬空或接地,不影响功能)

四、典型应用场景

WS2814C因体积小、集成度高、温宽宽,广泛应用于以下场景:

  1. 小型LED背光模组:如智能手表、小型仪表(温湿度计、胎压监测器)的多区域背光,4通道可分别驱动不同亮度区域;
  2. 多状态LED指示灯:如工业控制器、智能家居设备的状态指示(电源/运行/故障/待机4种状态);
  3. 微型LED装饰灯:如小型玩具、工艺品(迷你圣诞树、桌面摆件)的多灯串驱动;
  4. 户外小型照明:如自行车尾灯、小型露营灯的多通道亮度调节。

五、环境适应性与可靠性设计

WS2814C针对恶劣环境做了可靠性优化:

  • ESD防护:内置HBM 2kV静电防护,生产及使用过程中不易因静电损坏;
  • 过流保护:每通道内置过流保护(阈值18mA±5%),避免LED短路导致芯片烧毁;
  • 封装防护:SOP-8封装采用环氧塑封料,防潮、防尘等级达到IP54,适应潮湿环境(浴室、户外雨天)。

六、设计注意事项

为确保WS2814C稳定工作,需注意以下细节:

  1. 电源滤波:VDD引脚需并联10μF电解电容(滤波低频纹波)+0.1μF陶瓷电容(滤波高频纹波);
  2. 散热建议:SOP-8封装散热能力有限,避免长时间满负载(17.5mA/通道)下环境温度超过85℃,可通过PCB铺铜增强散热;
  3. PWM信号要求:输入PWM信号需为TTL电平(高电平≥4.5V,低电平≤0.5V),避免信号干扰导致调光异常;
  4. LED选型:每通道LED串联数量建议≤3颗(单颗3.0V~3.2V),总电压≤9.6V(≤VDD-0.5V),避免电压过高损坏芯片。

综上,WS2814C以“高集成度、宽电压、工业级温宽”为核心优势,是小功率多通道LED应用的高性价比选择,可满足消费电子、工业设备等多领域的设计需求。

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