WMSIC Electronic Components

LITEON LTV-207

ModelLTV-207
Package8-SOP
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LITEON LTV-207
Type
LITEON
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTV-207
Electronic Component
1
Package
8-SOP
Electronic Component
Transistor Output Optocoupler
Electronic Component
1g
Electronic Component
1
Channel Count
2
Electronic Component
BM0228728369
Type
Surface Mount
Operating Temperature
55°C ~ 110°C
Type
DC
Output Type
Transistor
Voltage
3750Vrms
Electronic Component
Electronic Component

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

LTV-207 产品概述

一、产品简介

LTV-207 是 LITEON(台湾光宝)推出的双通道晶体管输出光隔离器,采用 8-SOP 表面贴装封装,适用于数字信号隔离与低速开关接口。器件以发光二极管驱动光电晶体管,提供高达 3750Vrms 的隔离耐压,适合工业与消费电子场合的信号隔离需求。

二、主要规格

  • 通道数:2 通道(双通道)
  • 隔离电压:3750Vrms
  • 输出耐压(最大):80V
  • 输入类型:DC(发光二极管)
  • 输出类型:晶体管(NPN 光电晶体管)
  • 正向电流 If(最大):30mA
  • 正向电压 Vf(典型):1.2V
  • 电流传输比 CTR:典型/范围指标 100%(最小)~200%(最大),基准测试点为 If=10mA
  • VCE 饱和压降(最大):400mV
  • 开关时间(典型):Ton ≈ 5µs,Toff ≈ 4µs
  • 工作温度范围:-55°C ~ 110°C
  • 安装方式:表面贴装(SMD)

三、性能与特性

LTV-207 提供较高的 CTR(100% ~ 200% @10mA),在中低偏置电流下即可获得较好的输出电流增益,利于低功耗驱动设计。最大输出耐压 80V 和低 VCE(sat)(≤400mV)使其在常见逻辑侧和控制侧电平中能稳定工作。典型开关时间为几微秒级,适合脉冲、开关和一般数字通信隔离,但不适合高速总线或精密模拟信号的实时隔离。

四、典型应用

  • MCU 与隔离侧外设之间的数字信号隔离(GPIO、电平移位)
  • 工业控制与 PLC 输入/输出隔离
  • 电源反馈环路与次级控制信号隔离
  • 电信设备与终端设备的接口隔离
  • 家电与白色家电控制板的安全隔离

五、设计与使用建议

  • 输入侧须串联限流电阻以控制 If,避免超过 30mA 的最大额定值;若以 CTR 基准 10mA 估算,可在 5~10mA 区间取得长期稳定表现并延长寿命。
  • 输出侧为开集电极型态,需外接上拉电阻到合适电压,确保输出电压不超过 80V 并满足 VCE(sat) 要求。
  • 考虑 CTR 随温度与封装散热的衰减,设计时应留有裕量并在关键应用处进行实测验证。
  • 若用于高噪声环境,建议在输入端加入 RC 抗抖滤波或在输出端加入上拉旁路以提高抗干扰能力。

六、封装与环境参数

LTV-207 采用 8-SOP 封装,双通道并排布局,适合常见 PCB 表面贴装工艺。器件额定工作温度为 -55°C 至 110°C,满足多数工业级温度要求。隔离等级满足 3750Vrms 的安全隔离需要,可用于需要一定电气安全隔离的系统设计。

七、注意事项

  • 请严格遵守最大额定值(If、VCE、隔离电压等),避免长期在极限条件下运行。
  • 在高温或高湿环境中,应考虑封装老化与 CTR 变化带来的影响,并做好绝缘距离与爬电距离的 PCB 布局。
  • 对于高速或模拟精密信号隔离,应评估是否需选用高速型光耦或数字隔离器替代。

总结:LTV-207 是一款性能均衡、适用于一般数字隔离与工业控制场景的双通道晶体管输出光隔离器,具有高隔离电压与良好的 CTR 表现,适合在可靠性和成本之间寻求平衡的设计方案。

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