WMSIC Electronic Components

worldsemi WS2805

ModelWS2805
PackageSOP-10
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 WS2805
Type
WORLDSEMI
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WORLDSEMI
Electronic Component
WS2805
Electronic Component
1
Package
SOP-10
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.145g
Electronic Component
1
Channel Count
5
Features
(OVP)
Electronic Component
BM0264717360
Operating Temperature
40℃~+85℃
Switching Frequency
800kHz
Output Voltage
20V
Output Current
16mA

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

Worldsemi WS2805 多通道LED驱动IC产品概述

一、产品定位与核心应用

WS2805是世芯电子(Worldsemi)推出的5通道高压线性LED驱动IC,专为小功率多组LED阵列设计,聚焦工业指示、户外显示、车载背光等对稳定性、宽温适应性要求较高的场景。其核心优势是在紧凑封装内实现多通道精准驱动与保护功能,无需额外复杂电路即可降低系统BOM成本。

二、关键技术参数解析

2.1 供电与频率特性

  • 工作电压范围:3.5V~5.7V DC
    兼容3.7V锂电池(便携式设备常用)、USB 5V电源及5V线性稳压输出,无需额外升压/降压电路,直接匹配主流供电方式。
  • 开关频率:800kHz
    处于EMI(电磁干扰)低敏感频段,同时可减小电感、电容等被动元件体积,优化PCB布局空间(尤其适合小型化设备)。

2.2 输出驱动能力

  • 通道数:5通道
    单芯片可驱动5组独立LED阵列,无需并联多颗驱动IC,大幅降低硬件复杂度(如工业设备5状态指示可一步实现)。
  • 输出电压:20V DC
    支持最多4颗串联LED(单颗LED压降3~5V),避免并联驱动的电流不均问题,提升LED发光一致性。
  • 输出电流:16mA/通道(单通道典型值)
    适合小功率指示类LED(如指示灯、数码管),电流精度满足视觉一致性要求,无明显闪烁或亮度差异。

2.3 调光与保护特性

  • 调光方式:PWM调光
    支持宽占空比范围(0%~100%),调光过程无色彩偏移,适合需要亮度自适应的场景(如车载背光夜间/白天切换)。
  • 过压保护(OVP):内置OVP电路
    当输出电压超过阈值(约22V)时自动关断输出,防止LED过压损坏或驱动IC自身失效,提升系统可靠性。

2.4 环境适应性

  • 工作温度范围:-40℃~+85℃
    覆盖工业级温区,可用于户外设备(如公交站牌背光)、车载仪表(-40℃低温启动)等 harsh 环境,无需额外散热设计。

三、封装与可靠性设计

WS2805采用SOP-10贴片封装,引脚数10,尺寸紧凑(6.0mm×4.9mm×1.5mm),适合高密度PCB布局。封装材料为耐高温环氧树脂,满足回流焊工艺要求,同时具备≥2kV ESD抗静电能力,降低生产过程中的损坏风险。

四、典型应用场景

  1. 工业设备指示灯:PLC控制器、传感器模块的多状态指示(5通道对应5种状态),宽温适应工业现场高低温环境。
  2. 户外小间距显示屏:公交站牌、楼宇标识的背光驱动,20V输出可驱动串联LED提升亮度,800kHz频率减少EMI干扰。
  3. 车载仪表背光:兼容车载12V电源经降压后的5V输出,-40℃~+85℃温区满足车载环境,PWM调光实现亮度自适应。
  4. 便携式电子设备:手持终端的按键背光,3.7V锂电池供电无需转换,5通道驱动多按键背光,简化电路设计。

五、产品优势总结

  • 集成度高:单芯片集成5通道驱动+OVP保护,减少外围元件数量;
  • 兼容性强:宽电压输入覆盖主流电源,宽温适应多场景;
  • 成本优化:SOP-10封装适合自动化生产,无需额外电源转换,降低系统BOM成本;
  • 可靠性稳定:内置保护电路+工业级温区,提升产品使用寿命(典型MTBF≥10万小时)。

WS2805凭借高集成度、宽适应性及成本优势,成为中小功率多LED驱动场景的实用选择。

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