WMSIC Electronic Components

AOTE EL1018

ModelEL1018
PackageLSOP-4
BrandAOTE
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
AOTE EL1018
Type
AOTE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
AOTE
Electronic Component
EL1018
Electronic Component
1
Package
LSOP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.246g
Electronic Component
1
Electronic Component
3us
Electronic Component
BM0229305974
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
Output Channel Count
1

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

EL1018(LSOP-4)光耦产品概述

一、产品简介

EL1018 是 AOTE(奥特)推出的一款单通道光电晶体管输出光耦,封装为 LSOP-4。该器件通过内部红外发光二极管与光电三极管实现电气隔离与信号传输,适合数字/模拟信号隔离、微控制器接口及工业控制系统中的低到中等速率隔离需求。器件提供高达 5 kVrms 的输入输出隔离电压,并在宽温度范围内稳定工作(-55℃ 至 +110℃)。

二、主要参数(摘要)

  • 隔离电压(Vrms):5 kV
  • 输出类型:光电三极管(Phototransistor)
  • 电流传输比(CTR):最小 130%,最大/饱和值 260%
  • 输入类型:DC(发光二极管)
  • 正向压降(Vf):约 1.2 V
  • 正向电流(If)额定:50 mA(最大)
  • 直流反向耐压(Vr):6 V
  • 输出电流(Ic)最大:50 mA
  • 负载电压(Vce)最大:80 V
  • 集射极饱和电压(VCE(sat)):约 300 mV(典型测试条件见厂家资料)
  • 上升/下降时间:tr ≈ 2 μs,tf ≈ 3 μs
  • 工作温度:-55 ℃ ~ +110 ℃
  • 通道数:1,封装:LSOP-4

三、核心特性与优势

  • 高隔离等级:5 kVrms 的耐压能力,适用于需要严格安全隔离的场合。
  • CTR 良好且范围宽:130%~260% 的电流传输比,使得在较低驱动电流下也能获得足够的输出电流,提高系统灵敏度。
  • 低饱和压降:VCE(sat) 约 300 mV,有利于减少功耗并在饱和工作时保持较低的压降。
  • 宽温度范围:适应严苛的工业环境与长期可靠性要求。
  • 中等响应速度:上升时间 2 μs、下降时间 3 μs,适合开关和一般数传速度应用,但不适合高速通信场景。

四、典型应用场景

  • 微控制器与高压侧的信号隔离(例如 MCU 输入/输出与电源逆变器或电机驱动器隔离)。
  • 电源管理:电压/电流监测、开关状态反馈。
  • 工业控制与自动化系统:PLC 输入/输出隔离、传感器接口。
  • 家电与消费电子的系统保护与干扰隔离。
  • 需要高隔离等级且速度要求为微秒级的场合。

五、设计与使用建议

  • 输入侧限流:根据系统驱动电压计算限流电阻。示例:若驱动电压为 5 V,设定发光二极管工作电流 If = 5 mA,则限流电阻 R = (Vdrv − Vf)/If = (5 − 1.2) / 5 mA ≈ 760 Ω。具体 If 应根据目标 CTR 与功耗权衡选择,且不得超过 50 mA 最大正向电流。
  • 输出负载设计:输出三极管可承受最高 80 V 的负载电压,输出电流最高可达 50 mA。若需要更低的输出电平或更快的开关时间,可在集电极侧加上拉电阻并配合合适电源;若追求更快速度,考虑减小负载电阻以降低 RC 常数,但会增加功耗。
  • 饱和工作注意:当需要保证低 VCE(sat) 时,参考数据表中饱和测试条件(驱动电流与集电极电流),以免误用导致输出性能下降。
  • 反向电压与反向保护:LED 反向耐压仅 6 V,实际电路中应避免反向电压或并联反向保护二极管以防反向击穿。
  • 封装与 PCB:LSOP-4 封装适合自动贴片加工。布板时注意保持输入与输出区域的爬电距离和对地隔离,以维持隔离性能。

六、封装、可靠性与测试

EL1018 提供 LSOP-4 表面贴装封装,便于自动化生产。厂家通常会进行 100% 电气测试并提供隔离耐压测试报告。对于关键应用,建议在设计中留出测试点并按相关安全标准(如加强型/基本绝缘要求)进行系统级验证。

七、选型提示

  • 若需更高速度或更严格的 CTR 稳定性,可考虑光电隔离器带集成功能或高速型器件;若需更大电流或更低导通压降,可考虑继电器或固态继电器等替代方案。
  • 在成本与性能之间权衡时,EL1018 适合追求高隔离能力、良好灵敏度与中等速度的通用型隔离场合。选型时请参考完整的厂家数据手册以获取完整测试条件与曲线,确保与系统要求相匹配。

如需针对具体应用(电源、MCU 接口或工业控制)给出详细接线图或限流/拉电阻计算示例,可提供工作电压与目标信号电流,我会给出更精确的设计建议。

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