WMSIC Electronic Components

AOTE LTV-214B

ModelLTV-214B
PackageSSOP-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 LTV-214B
Type
AOTE
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
AOTE
Electronic Component
LTV-214B
Electronic Component
1
Package
SSOP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.135g
Electronic Component
1
Electronic Component
18us
Electronic Component
BM0257614115
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
(Pd)
200mW

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

LTV-214B(AOTE/奥特)产品概述

一、产品简介

LTV-214B 是一款单通道光电三极管隔离器,输入为直流驱动 LED,输出为光电三极管,适用于信号隔离与电平转换场合。器件提供高达3.75 kVrms 的输入/输出隔离电压,封装为 SSOP-4,体积小、易于 PCB 布局,适合工业与消费类电子系统使用。

二、主要性能参数

  • 输入类型:DC(发光二极管)
  • 输出类型:光电三极管(集电极-发射极)
  • 正向压降 Vf:约 1.2 V(典型值)
  • 正向电流 If(最大):50 mA
  • 输出电流(最大):50 mA
  • 电流传输比 CTR:最小 20% ,最高/饱和值 300%(随 If 与温度变化)
  • 集电极—发射极饱和电压 VCE(sat):200 mV(典型,测试条件常见为 If=20 mA,Ic=1 mA)
  • 负载电压(最大):80 V
  • 隔离电压 Vrms:3.75 kV
  • 上升/下降时间 tr / tf:18 µs / 18 µs
  • 工作温度范围:-55 ℃ ~ +110 ℃
  • 总功耗 Pd:200 mW
  • 输出通道数:1
  • 封装:SSOP-4

三、典型应用场景

  • 微控制器与高压电路之间的信号隔离与电平转换
  • 工业控制接口、PLC 信号隔离
  • 开关电源反馈回路与电机驱动信号隔离
  • 通信设备、家用电器与测量仪器中低速数字/模拟隔离

四、使用与设计注意事项

  • LED 驱动:考虑 Vf≈1.2 V 与所需 If,选择合适串联限流电阻;推荐工作 If 在器件规格内并视 CTR 需求合理选取(常用 1–20 mA)。
  • 输出拉电阻:光电三极管为开集电极结构,需外接上拉电阻,Rpull = (VCC − VCEsat)/IcTarget。例如 VCC=5 V、目标 Ic=10 mA,则 R ≈ 480 Ω。
  • CTR 随温度与 If 变化,低 If 情况下输出电流可能显著下降,应在设计余量内选择驱动电流或采用施密特触发等后端电路。
  • 隔离与可靠性:保持 PCB 上输入/输出间的爬电距离与绝缘要求,符合系统安全设计。
  • 功耗与散热:总功耗 Pd=200 mW,若长期高电流工作需考虑热管理与降额使用。
  • 焊接与存储:遵循无铅回流温度曲线与防潮处理建议,避免焊接过热。

五、封装与环境

SSOP-4 小型封装便于密集板上布线,工作温度范围宽(-55~+110 ℃),适应工业级环境。单通道设计便于在多路系统中并联使用(注意隔离距离与电气特性一致性)。

六、典型电路参考

  • 输入侧:DC 源 → 串联限流电阻 → LED(If 控制)→ 地
  • 输出侧:VCC → 上拉电阻 → 集电极,发射极接地;输出点取自集电极/上拉节点

总结:LTV-214B(AOTE)以其高隔离电压、小封装、较宽工作温度和适中的速度(tr/tf≈18 µs)适合工业控制与一般信号隔离场合。设计时关注 CTR、If 与热耗匹配,可获得可靠的隔离与信号传输性能。

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