WMSIC Electronic Components

LITEON LTV-852

ModelLTV-852
Package4-DIP
BrandLITEON
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
LITEON LTV-852
Type
LITEON
Unit
Electronic Component
Minimum package
2000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTV-852
Electronic Component
1
Package
4-DIP
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.42g
Electronic Component
1
Electronic Component
20us
Features
Output
Electronic Component
BM0227598559
Operating Temperature
30℃~+100℃
Load Voltage
300V
Type
DC
Output Current
150mA

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

LTV-852 达林顿晶体管输出光耦产品概述

一、产品基本定位与品牌背景

LTV-852是台湾光宝(LITEON)推出的DC输入达林顿晶体管输出光耦合器,属于电-光-电信号隔离传输的核心器件。光宝作为全球知名电子元器件制造商,在光耦领域拥有数十年研发生产经验,产品以高可靠性、宽适配性著称,广泛覆盖工业控制、电力电子等场景。

该器件采用达林顿晶体管输出结构,相比普通晶体管输出光耦,能提供更高电流增益,可满足中等负载电流的隔离控制需求,同时具备高隔离电压、宽工作温度等特性,适配复杂应用环境。

二、核心参数与性能特点

2.1 核心参数梳理

参数类别 具体参数 输入输出类型 DC输入(LED驱动)、达林顿晶体管输出 正向特性 正向压降Vf=1.2V;最大正向电流If=50mA 输出特性 最大输出电流150mA;VCE(sat)=1.2V@100mA、20mA@(注:按用户提供);上升时间tr=100μs@20mA/100Ω;下降时间20μs 隔离特性 隔离电压Vrms=5kV;直流反向耐压Vr=6V;最大负载电压300V 通道数 1通道(单路隔离) 工作温度范围 -30℃~+100℃ 封装 4-DIP(双列直插式)

2.2 关键性能优势

  1. 高电流增益与输出能力:达林顿结构使输出电流增益显著提升,最大输出电流150mA,可直接驱动中小功率负载(如继电器、小型电机);
  2. 强隔离防护:额定隔离电压5kV(Vrms),有效隔离强电与弱电回路干扰;直流反向耐压6V可防止输入侧反向击穿;
  3. 宽电压适配:最大负载电压300V,兼容220V交流等高压应用场景;
  4. 宽温可靠性:工作温度覆盖-30℃至+100℃,满足工业级环境(户外设备、高温车间)需求;
  5. 快速响应:下降时间仅20μs,上升时间100μs(@20mA/100Ω),适配一般数字信号传输速度。

三、封装与引脚配置

LTV-852采用4-DIP标准封装,引脚布局清晰,便于手工焊接与批量生产。典型引脚定义如下:

  • 1脚:输入侧LED阳极(接控制信号正);
  • 2脚:输入侧LED阴极(接控制信号地);
  • 3脚:输出侧达林顿管发射极(接负载地);
  • 4脚:输出侧达林顿管集电极(接负载正或电源正)。

注:实际应用需以官方 datasheet 为准,避免反向接入损坏器件。

四、典型应用场景

LTV-852凭借隔离性能与输出能力,广泛应用于:

  1. 工业控制:PLC数字量输入输出模块(隔离传感器与控制器)、电机驱动信号隔离(防止功率回路干扰);
  2. 电力电子:开关电源反馈隔离(电压反馈环路)、逆变器/ UPS控制信号隔离;
  3. 通信传输:RS232/RS485串口信号隔离(防止共地干扰丢包);
  4. 家电与消费电子:智能空调/洗衣机继电器驱动隔离、智能家居控制信号隔离;
  5. 医疗设备:心电监护仪等信号隔离(保障设备与患者安全)。

五、使用注意事项

为确保长期可靠性,需注意:

  1. 正向电流限制:输入LED最大电流50mA,实际建议不超过40mA(留20%余量),避免过流老化;
  2. 输出电流限制:负载电流需≤150mA,大电流场景需外接功率管扩展;
  3. 隔离电压防护:瞬态峰值电压需控制在额定范围内,避免击穿隔离层;
  4. 温度降额:高温(>85℃)环境下,适当降低输入/输出电流,防止参数漂移;
  5. 焊接工艺:烙铁温度≤300℃,焊接时间≤3秒,避免器件受热损坏;
  6. 反向保护:输入侧反向电压≤6V,防止LED击穿。

六、总结

LTV-852作为光宝达林顿输出光耦,兼具高隔离、中等输出、宽温适配等优势,是工业控制、电力电子等领域信号隔离的理想选择。其4-DIP封装便于集成,核心参数满足大多数中等负载隔离需求,配合光宝品牌可靠性,可广泛应用于各类需要电气隔离的电路设计中。

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