WMSIC Electronic Components

UMW LTV-1009

ModelLTV-1009
PackageSOP-4-2.54mm
BrandUMW
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
UMW LTV-1009
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
LTV-1009
Electronic Component
1
Package
SOP-4-2.54mm
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.247g
Electronic Component
1
Electronic Component
6us
Electronic Component
BM0230105284
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
(Pd)
250mW

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

LTV-1009 产品概述

一、产品简介

LTV-1009 是 UMW(友台半导体)推出的一款晶体管输出型光电耦合器,输入为直流光源(发光二极管),输出为光电三极管。器件设计用于在信号隔离、逻辑接口和工业控制场合实现低失真、可靠的电气隔离,典型输出电流可达 50 mA,正向压降 Vf ≈ 1.24 V。

二、主要参数

  • 输入类型:DC(发光二极管)
  • 输出类型:光电三极管
  • 正向压降(Vf):1.24 V
  • 最大输出电流:50 mA
  • 隔离电压(Vrms):5 kV
  • 直流反向耐压(Vr):6 V
  • 负载电压:80 V
  • 集—射极饱和电压 VCE(sat):≈300 mV(规格条件:If=10 mA,Ic=1 mA)
  • 上升时间 tr:5 µs(典型,IF=2 mA,RL=100 Ω)
  • 下降时间 tf:6 µs
  • 工作温度范围:-55℃ ~ +110℃
  • 电流传输比(CTR):最小 80%,典型/最大可达 160%
  • 总功耗 Pd:250 mW
  • 正向电流 If(最大):60 mA
  • 封装:SOP-4,2.54 mm 引脚间距

三、关键性能特点

  • 高隔离等级:5 kVrms 的耐压能力,适合需要高电气隔离的应用。
  • 宽 CTR 范围:80% ~ 160%,方便在不同驱动条件下维持稳定的输出放大倍数。
  • 较低饱和压降:VCE(sat)≈300 mV(在给定条件下),有利于降低开关损耗与压降。
  • 快速响应:上升/下降时间约 5–6 µs,适合中速数字信号传输与脉冲隔离。
  • 宽温度适应性:可在-55℃ 至 +110℃ 环境工作,可靠性高。

四、典型应用场景

  • MCU 与高电压系统间的逻辑隔离与电平转换。
  • 开关电源反馈回路与辅助电路隔离。
  • 工业控制信号隔离(PLC、驱动器输入)。
  • 通信设备、仪表与传感器接口的噪声抑制与保护。
  • 需要中等速度响应和较大输出电流的场合。

五、设计与选型建议

  • 驱动选择:根据目标输出电流与CTR估算所需 If,例如希望 Ic=2 mA,采用 CTR=100% 时,If≈2 mA,则在 5 V 供电下限流电阻 R ≈ (5−1.24)/2 mA ≈ 1.88 kΩ。实际应考虑 CTR 波动与较低环境温度对 CTR 的影响,适当增加裕量。
  • 功率与电流限制:If 最大不超过 60 mA,总功耗 Pd 不超过 250 mW;推荐常用 If 远低于最大值以提高寿命与可靠性。
  • 工艺与布板:保持输入与输出端良好走线隔离,满足封装与 PCB 的爬电、气隙要求以配合 5 kVrms 隔离能力。
  • 开关速度:若需更快响应,应选用专用高速光耦或配合前端驱动电路减小输入电阻与负载电阻。

六、可靠性与封装信息

LTV-1009 采用 SOP-4 封装,2.54 mm 引脚间距,便于常见 PCB 布局与自动贴片加工。器件在工业级温度范围内可靠工作,适合长时间运行和苛刻环境。建议在系统设计中考虑热量分散与长期电流应力的降额使用,以延长器件寿命并保证隔离性能稳定。

总结:LTV-1009 是一款面向中速、较大输出电流要求的晶体管输出光耦,兼具高隔离电压、较宽 CTR 和工业温度能力,适用于电源反馈、工业控制和数字信号隔离等场景。

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