WMSIC Electronic Components

TLP290(V4GBTP,SE(T TLP290

ModelTLP290(V4GBTP,SE(T
PackageSO-4-175mil
BrandTOSHIBA
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA TLP290(V4GBTP, SE(T
Type
TOSHIBA
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TOSHIBA
Electronic Component
TLP290(V4GBTP,SE(T
Electronic Component
1
Package
SO-4-175mil
Electronic Component
Transistor Output Optocoupler
Electronic Component
0g
Electronic Component
1
Electronic Component
3us
Electronic Component
BM0229970541
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
AC,DC
Output Current
50mA
Output Type
Photoelectric Transistor
(Pd)
200mW

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

TLP290 (V4GBTP / SE(T)) 产品概述

一、产品概述

TLP290 系列是东芝(TOSHIBA)提供的一款光电三极管输出光耦合器(phototransistor output optocoupler),适用于隔离数字与模拟信号、微控制器接口、以及电力/电气信号检测等场合。该器件兼容 AC 与 DC 输入,输出侧为光耦合的 NPN/PNP 型光电三极管(具体型号以数据手册为准),具有较高的电流传输比(CTR)范围和中等速度的开关性能,适合需要电气隔离且对输出电流有一定要求的应用。

二、主要规格亮点

  • 输入类型:支持 AC、DC(输入端为发光二极管,需按实际电路设计)
  • 输出类型:光电三极管(Phototransistor)
  • 正向压降(Vf,LED):约 1.25 V(典型)
  • 最大输出电流(集电极电流):50 mA
  • 负载耐压(VCEO/最大负载电压):80 V
  • 集射极饱和电压 VCE(sat):300 mV(依据测试条件,如 2.4 mA、8 mA 等)
  • 电流传输比(CTR):最小 100%,饱和值 / 最大可达 600%(CTR 变化较大,设计时应考虑最差与最优情况)
  • 上升/下降时间:tr ≈ 2 μs,tf ≈ 3 μs(中等速度开关)
  • 隔离电压(耐压):Vrms = 3.75 kV(典型值,用于绝缘等级评估)
  • 总功耗(Pd):200 mW(输出侧限制)
  • 工作温度范围:-55 ℃ ~ +110 ℃
  • 封装:SO-4(175 mil)标准化小外形,便于 PCB 布局与自动化贴装
  • 品牌:TOSHIBA(东芝)

三、性能与电气特性说明

  • CTR(I_C / I_F)范围宽:最小 100% 意味着在设计的最差情况下,输出电流可等于输入 LED 电流;而最大可到 600% 表示在某些器件或条件下输出电流可显著高于输入电流。设计时应以最小 CTR 进行最坏情况计算,必要时加入反馈或限流措施以适应 CTR 的大幅度分散。
  • VCE(sat) 低:典型 0.3 V(在给定测试条件下),表明在饱和状态时压降小,适合驱动低电压负载或用作开关。
  • 开关速度中等:tr/tf 在微秒级,适合开关频率不太高的数字隔离或信号传输,但不适合几十或上百 kHz 的严格高速接口。
  • 隔离与耐压:3.75 kVrms 的隔离能力适用于常见的信号隔离和小型电源反馈回路,但高安全等级应用仍需参考绝缘材料、爬电距离和认证要求。

四、典型应用场景

  • MCU 与电源/高压侧信号隔离(例如开关电源的反馈环路)
  • 工业控制信号隔离(继电器驱动、PLC 输入输出隔离)
  • AC/ DC 电平检测与转换(配合整流/限流电路检测交流电压)
  • 高频噪声环境下的数字信号隔离与滤波后传输
  • 测试与测量设备中的安全隔离通道

五、设计建议与注意事项

  • 输入限流:根据供电电压与期望 LED 电流计算限流电阻。示例:若 Vcc = 5 V,目标 If = 10 mA,R ≈ (5 − 1.25) / 10 mA ≈ 375 Ω(选用标准值 360/390 Ω)。注意 If 最大 50 mA,但长期工作应避免持续在极限值以延长寿命。
  • 考虑 CTR 最小值:电路应以最小 CTR(100%)计算最坏输出电流,必要时在输出侧加上上拉电阻或限流器件以保证逻辑电平稳定。
  • 输出功耗与散热:输出端总功耗 Pd 为 200 mW,若输出电流接近最大值,需确保器件在允许的结温范围内工作并考虑 PCB 散热。
  • 输入为 AC 时的处理:器件本质为 LED;若直接检测交流,需考虑反向耐压及半波问题,通常建议使用整流或双向输入电路以保护 LED 或保证双向响应。
  • 版图与隔离:尽管器件本身隔离能力高,PCB 布局时仍需保证足够的爬电距离和污秽等级下的安全间隙,满足系统认证要求。
  • 开关速度限制:若应用需要更高的带宽或更快的切换,请评估是否需要高速型光耦或光电隔离器件(如高速光耦或数字隔离器)。

六、封装与可靠性信息

  • 封装类型为 SO-4(175 mil),适合标准贴装工艺,易于自动化生产与焊接。
  • 工作温度范围宽(-55 ℃ ~ +110 ℃),适用于工业级环境。
  • 隔离电压与长期可靠性应结合 PCB 材料、工作环境湿度及电压冲击一并评估;关键安全应用请参考完整数据手册与认证文档。

总结:TLP290 (V4GBTP/SE(T)) 是一款面向中等功率、需电气隔离的通用光耦,特点为较大的 CTR 范围、50 mA 输出能力与 3.75 kVrms 隔离能力。适合工业控制、开关电源反馈与一般信号隔离场景。设计时应重视 CTR 的变化、输入限流、输出功耗与 PCB 隔离布局以确保长期稳定运行。

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