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LITEON LTV-155E
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- LITEON LTV-155E
- Type
- LITEON
- Unit
- Electronic Component
- Minimum package
- 3000 卷
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITEON
- Electronic Component
- LTV-155E
- Electronic Component
- 1
- Package
- SOP-5-4.4mm
- Electronic Component
- Logic Output Optocoupler
- Electronic Component
- 0.214g
- Electronic Component
- 1
- Channel Count
- 1
- CMTI(kV/us)
- 50kV/us
- Features
- Electronic Component
- Electronic Component
- BM0228587474
- Operating Temperature
- 40℃~+105℃
- Operating Voltage
- 10V~30V
- Type
- DC
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LTV-155E 产品概述
一、产品概览
LTV-155E 为 LITEON（台湾光宝）出品的一款单通道逻辑输出光耦，面向需高隔离与中高速响应的工业与消费类应用。器件输入端支持直流驱动，工作电压范围宽（10V ~ 30V DC），输出端提供可靠的逻辑级隔离与驱动能力，可在恶劣电磁环境下保持信号完整性。
二、主要规格
- 隔离耐压（Vrms）：3.75 kV（满足常见强化隔离要求）
- 共模瞬态抑制能力（CMTI）：50 kV/µs（典型），对强干扰环境具有良好抗扰性
- 工作温度：-40 ℃ ~ +105 ℃
- 传播延迟：tpLH ≈ 200 ns，tpHL ≈ 200 ns（上升/下降对称，适合中等速率信号）
- 输入阈值电流（FH）：5 mA（典型），低输入驱动要求
- 输出电流：最高可达 1 A（需参考脉冲/持续条件与散热限制）
- 耗散功率（Pd）：295 mW（封装热限制需关注）
- LED 正向压降 Vf：≈ 1.37 V（If = 25 mA）；反向耐压 Vr：5 V
- 通道数：1；封装：SOP-5，4.4 mm 芯距/尺寸
三、关键特性与优势
- 强化隔离性能：3.75 kVrms 隔离等级，适用于需要安全隔离或不同电位域通信的场合。
- 高共模抗扰性：50 kV/µs 的 CMTI 能力在电机驱动、电源切换与负载突变环境下尤为重要，可降低误触发与传输错误。
- 低驱动门槛与中速响应：5 mA 输入阈值与约 200 ns 的传播延迟，使其可与 MCU、PLC 等常见控制器直接接口，并能满足多数控制与诊断信号链路需求。
- 小型封装：SOP-5 形式便于 PCB 布局与自动化贴装，适合体积受限的设计。
四、典型应用场景
- 工业控制信号隔离（PLC 与外设、继电器驱动隔离）
- 开关电源与电池管理系统的状态/故障信号传输
- 电机驱动控制与反馈环路隔离（需配合系统级滤波）
- 通用数字接口隔离（微控制器到高电压侧的逻辑信号传递）
五、封装与设计注意事项
- 热管理：器件 Pd 为 295 mW，长时间工作或高频脉冲下需考虑散热与封装环境，必要时在 PCB 上增加散热铜箔。
- 输入保护：LED 反向耐压仅 5 V，建议在需承受反向电压的应用中加入反向并联二极管或限制电阻。
- 输出驱动能力：1 A 为最高驱动能力，须参考器件脉冲等级与占空比；持续大电流时注意封装功耗与热降额。
- 隔离布局：确保 PCB 上的爬电距离与间隙满足系统等级要求，并对高频共模干扰采取合理的接地与滤波策略。
- 推荐在设计前仔细阅读原厂数据手册以获取详细的电气参数、典型应用电路和最大额定值。
LTV-155E 以其可靠的隔离性能与优良的抗干扰能力，适合在工业级与需安全隔离的系统中作为逻辑信号传输的优选元件。
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