WMSIC Electronic Components

LITEON LTV-817-C-CU

ModelLTV-817-C-CU
PackageDIP-4
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-817-C-CU
Type
LITEON
Minimum package
2000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITEON
Electronic Component
LTV-817-C-CU
Electronic Component
1
Package
DIP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.5g
Electronic Component
1
Electronic Component
3us
Electronic Component
BM0264392196
Operating Temperature
55℃~+110℃
Load Voltage
35V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
Output Channel Count
1

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

LTV-817-C-CU 直插光耦(DIP-4)产品概述

LTV-817-C-CU 是 LITEON(台湾光宝)推出的一款单通道光耦合器,采用直插式 DIP-4 封装。输入端为发光二极管(LED),输出端为光电三极管,实现输入与输出之间的电气隔离与信号传输。该器件具有较高的隔离耐压、宽工作温度范围和良好的开关特性,适合工业控制、开关电源、微处理器接口等需要低功耗且可靠隔离的场合。

一、主要特性

  • 输入类型:DC(LED 驱动)
  • 输出类型:光电三极管(NPN)
  • 正向压降(Vf):典型 1.2 V
  • 正向电流(If)最大值:50 mA(瞬时或绝对最大额定,请参考数据手册)
  • 输出电流(Ic)最大值:50 mA
  • 直流反向耐压(Vr):6 V
  • 负载电压(VC或VCEO):最大 35 V
  • 集射极饱和电压(VCE(sat)):约 100 mV(IF = 20 mA,IC = 1 mA 条件下)
  • 隔离电压(Vrms):5 kV
  • 电流传输比(CTR)范围:最小 50%,最高可达 600%(随 If、温度与散布而变化)
  • 开关速度:上升时间 tr ≈ 4 μs,下降时间 tf ≈ 3 μs
  • 工作温度范围:-55 ℃ 至 +110 ℃
  • 封装:DIP-4,单通道
  • 品牌:LITEON(光宝)

二、功能与优势

  • 高隔离电压(5 kVrms):适用于需要安全隔离的应用,能有效隔离高低压电路,保护下游器件和人身安全。
  • 宽 CTR 范围:在不同驱动电流下具有良好的放大能力,可灵活匹配多种负载需求。
  • 低饱和电压:在典型驱动条件下 VCE(sat) 低,有利于降低功耗与发热。
  • 宽温度范围:适合工业级应用环境。
  • DIP-4 直插封装:便于实验板、原型和传统工业设备的插装或手工焊接。

三、典型应用场景

  • 微处理器与高压电路之间的信号隔离与接口(TTL/CMOS 兼容信号隔离)
  • 开关电源及逆变器的参考与控制信号隔离
  • 电表、继电器驱动回路的状态检测与隔离
  • 工业自动化控制系统的输入/输出隔离
  • 电机驱动与保护电路中的故障信号传输

四、电气与使用建议

  • 驱动电流选择:为获得稳定的 CTR 与开关特性,常用 If 在 1–20 mA 范围内设计;If 达到 20 mA 时可得到较低的 VCE(sat)。避免长期在 If 最大额定值(50 mA)下持续工作,以防热应力与寿命降低。
  • 负载与上拉:输出端通常需要上拉电阻或作为开集电极配置到后级电源(最大负载电压 35 V)。根据所需输出电流与响应速度调整上拉阻值,较小的上拉阻值可提高开关速度但会增加功耗。
  • CTR 波动:CTR 随 If、温度与器件个体差异产生显著波动,设计时应预留裕量或采用反馈/校正策略。
  • 反向电压保护:输入端反向耐压较低(Vr = 6 V),避免在电路中出现超过该值的反向偏压,可在必要处并联反向保护二极管。
  • 开关速度优化:若需要更快响应,可在输出端并联加速电阻或采用去耦电容结合合适的上拉方案,但需权衡功耗与噪声。

五、封装与机械注意事项

  • 封装形式为标准 DIP-4,可插装在通孔 PCB 或面包板上,便于原型验证与维修更换。
  • 焊接时注意控制回流/波峰焊温度与时间,避免超过器件耐受范围,防止封装或内部黏合剂受损。详细焊接曲线请参照厂商数据手册。
  • 由于器件用于高压隔离场合,PCB 设计时应确保足够的爬电距离与空气间隙,并按相关安全规范布线与加固。

六、可靠性与储存

  • 储存与使用应避免潮湿、高温及强酸碱性环境;长期储存建议密封防潮。
  • 在高可靠性或安全等级要求的系统中,需结合实际应用做寿命测试与电气绝缘试验,确认在工作寿命期内满足隔离与开关特性要求。

结语:LTV-817-C-CU 以其高隔离电压、良好的 CTR 范围和直插式封装,为需要安全隔离与简单接口的工业与消费类设计提供了性价比高的选择。欲获得更详细的电气参数曲线、绝对最大额定值与典型应用电路,请参考 LITEON 官方数据手册。

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