WMSIC Electronic Components

LITEON LTV-T350S-TA1

ModelLTV-T350S-TA1
PackageSMD-8P
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LITEON LTV-T350S-TA1
Type
LITEON
Minimum package
1000 卷

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTV-T350S-TA1
Electronic Component
1
Package
SMD-8P
Electronic Component
Logic Output Optocoupler
Electronic Component
0.767g
Electronic Component
1
Channel Count
1
CMTI(kV/us)
35kV/us
Features
Electronic Component
Electronic Component
BM0258420303
Operating Temperature
40℃~+105℃
Operating Voltage
15V~30V
Type
DC
Output Current
2.5A

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

LTV-T350S-TA1 产品概述

一、产品简介

LTV-T350S-TA1 是台湾光宝(LITEON)系列的单通道逻辑输出光耦合器,针对工业级隔离控制和信号传输设计。器件提供高电压隔离与强抗脉冲共模干扰能力,适用于需要在高电位差环境下把低压逻辑信号安全传递到系统另一侧的场合。工作温度范围宽(-40℃ ~ +105℃),可靠性适合长期工业应用。

二、主要规格参数

  • 输入类型:DC
  • 工作电压(输出侧/推荐拉高电压范围):15V ~ 30V DC
  • 隔离电压(Vrms):5 kV
  • 共模瞬态抗扰度(CMTI):35 kV/µs
  • 通道数:1
  • 工作温度:-40℃ ~ +105℃
  • 传播延迟 tpLH / tpHL:典型 500 ns / 500 ns
  • 输入阈值电流(FH):5 mA
  • 输出电流:2.5 A(器件资料中标注的输出能力)
  • 耗散功率 Pd:295 mW
  • 发光二极管正向压降 Vf:1.37 V(If = 16 mA 条件)
  • 二极管直流反向耐压 Vr:5 V
  • 正向电流 If:16 mA(常用驱动电流示例)

三、核心性能与优势

  • 高隔离能力:5 kVrms 隔离等级满足多数工业安全与电气隔离要求,便于满足系统级安全规范。
  • 强抗干扰:35 kV/µs 的 CMTI 对在开关电源、逆变器、马达驱动等强共模干扰环境中维持稳定信号传输尤为重要。
  • 宽工作电压:15–30V 的输出侧电压范围方便与常见工业控制电源直接接口。
  • 低输入驱动要求:5 mA 的阈值电流利于微控制器或低功耗驱动器直接驱动输入 LED。
  • 对时序的确定性:上/下沿传播延迟约 500 ns,适合中速逻辑隔离与控制信号传输。

四、典型应用场景

  • 工业控制与 PLC 信号隔离
  • 开关电源与功率单元的反馈/逻辑隔离
  • 继电器/晶闸管/功率器件驱动(作为栅极或驱动逻辑隔离环节)
  • 电机控制系统的逻辑隔离与抗干扰接口
  • 测试测量设备与通信接口的保护隔离

五、使用建议与注意事项

  • 驱动 LED:保证输入电流不低于 5 mA 以可靠触发;常用 If = 16 mA 可获得稳定开关性能。串联限流电阻按 R = (Vdrive - Vf) / If 计算,考虑驱动器输出能力与占空比的热耗散。
  • 输出侧设计:器件标注的输出电流 2.5 A 表示短时或特定条件下的输出能力,实际电路中仍应通过外部限流或合理选型保护负载,避免超出耗散功率 Pd(295 mW)导致器件过热。
  • 隔离与布线:为发挥 5 kVrms 隔离与 35 kV/µs 抗扰度,PCB 设计时应确保输入/输出间足够的爬电与间隙距离,缩短穿越隔离槽的导线长度,尽量避免在隔离边缘布置敏感模拟节点。
  • 时序匹配:传播延迟 ~500 ns,若系统对延迟和通道匹配敏感,应在系统级进行校准或考虑更高速的隔离器件。
  • 保护与抗浪涌:在驱动电感性负载或存在高 dv/dt 场景下,建议在输出侧并联 RC 吸收或使用 TVS 垂直保护器件,保护光耦输出结构并改善稳定性。
  • 温度与散热:在高温或高占空比工作时注意热设计,遵循厂商 Pd 与温度降额规则以保证长期可靠性。

六、封装与确认信息

  • 器件封装信息与引脚定义建议以官方数据手册为准,实际选型时请参考 LITEON 官方资料以获取完整的机械尺寸、引脚排列及最大额定值。

结语:LTV-T350S-TA1 结合高隔离等级与良好的共模抗扰能力,适合工业级逻辑信号隔离应用。为确保最佳性能与可靠性,推荐在设计前下载并参照厂商完整数据手册,按照电气与热性能限制进行电路与 PCB 布局设计。

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