WMSIC Electronic Components

MSKSEMI MTLP181GB

ModelMTLP181GB
PackageSOP-4
BrandMSKSEMI
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
MSKSEMI MTLP181GB
Type
MSKSEMI
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
MTLP181GB
Electronic Component
1
Package
SOP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.177g
Electronic Component
1
Electronic Component
12us
Electronic Component
BM0230489897
Operating Temperature
55℃~+110℃
Load Voltage
80V
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.

MTLP181GB 产品概述

MTLP181GB 是 MSKSEMI(美森科)推出的一款单通道光电三极管输出光耦合器,采用 SOP-4 封装,适用于需要电气隔离与信号传输的中低速开关与接口场景。器件以高隔离电压、宽电流传输比(CTR)和低饱和压降为主要特点,兼顾可靠性与体积效率,适合集成在工业控制、通信接口、电源隔离和微控制器驱动电路等应用中。

一、主要性能摘要

  • 输入类型:DC(发光二极管输入)
  • 输出类型:光电三极管
  • 正向压降(Vf):典型 1.2 V
  • 正向电流(If)最大:50 mA(峰值/允许驱动电流,请参考热耗散限制)
  • 输出电流(Ic)最大:50 mA
  • 集—射极饱和电压 VCE(sat):约 0.1 V(在指定工作点下)
  • 隔离电压(Vrms):3.75 kV(耐压隔离能力)
  • 直流反向耐压(Vr):5 V(LED 端反向限制)
  • 负载电压(Collector to Emitter)最大:80 V
  • 电流传输比(CTR):最小 100%,最大可达 600%(表示高灵敏度与大增益范围)
  • 上升/下降时间(tr / tf):约 12 μs / 12 μs(中速响应)
  • 输出通道数:1 通道
  • 工作温度范围:-55 ℃ 至 +110 ℃
  • 封装:SOP-4(表面贴装)

二、产品特点与优势

  • 高隔离电压(3.75 kVrms):适合要求较高电气隔离的场合,能有效阻断高压干扰与保护低压控制侧。
  • 宽 CTR 范围(100%–600%):在较低驱动电流下即可获得较大的输出电流,便于降低 LED 驱动功耗或扩大工作余量。
  • 低 VCE(sat)(约 0.1 V):在饱和导通状态下,输出侧压降小,降低功耗并减小热耗散。
  • 中速切换特性(tr/tf ≈12 μs):适合脉冲频率在几十 kHz 以下的数字或模拟隔离场景,兼顾响应速度与电磁兼容性。
  • 宽温度范围与 SOP-4 封装:适合工业级环境与标准表面贴装组装工艺。

三、典型应用场景

  • 工业控制接口:PLC、继电器驱动隔离、传感器信号隔离。
  • 电源管理与隔离:开关电源反馈回路、次级到主级的信号传输。
  • 通信与逻辑电平隔离:微控制器间的电平隔离、UART/I2C/SPI 等总线保护(低速或中速)。
  • 家电与消费电子:需要电气隔离的按键、指示与遥控信号隔离方案。

四、使用建议与注意事项

  • 驱动与限流:LED 最大额定正向电流为 50 mA,但为保证长期可靠性和热管理,应根据应用选择合适的驱动电流(常见工作点为 1–20 mA)。使用串联限流电阻防止过流。
  • 反向电压限制:LED 反向耐压仅 5 V,避免在电路设计中施加超过此值的反向偏压,可在必要处并联反向保护二极管。
  • 输出电流与功耗:输出侧最大允许集电极电流为 50 mA,且 VCE(sat) 非零,设计时须计算总功耗并确保封装散热与 PCB 布局满足热量释放。
  • 隔离距离与爬电距离:尽管器件本体隔离电压高达 3.75 kVrms,系统设计时仍需考虑 PCB 上的实际爬电与间隙要求,以满足系统安全标准。
  • 开关速度与去耦:若用于脉冲或高速信号,注意输出端负载和寄生电容可能影响上/下降时间;必要时在输出侧采用适当的上拉或下拉电阻以改善响应。

五、封装与机械信息

  • 封装类型:SOP-4,适合自动贴装与回流焊工艺。
  • 引脚功能:标准 4 引脚布局(Vcc 或输出集电极/发射极与 LED 引脚排布),在参考设计中请遵循厂方的引脚定义与 PCB 推荐封装。

六、可靠性与选型建议

MTLP181GB 在中低速隔离传输应用中提供了高灵敏度与较强的隔离能力。选型时应关注具体的 CTR 测试条件与热特性曲线,验证在目标 If 与温度条件下的输出表现。若系统需要通过特定的安全认证(例如医疗或高危险环境的更高隔离要求),请在设计阶段与供应商确认器件的认证状态与等效替代型号。

总结:MTLP181GB 以其高隔离、宽 CTR、低饱和压降及 SOP-4 封装,为工业与消费级隔离应用提供了可靠且体积小巧的解决方案。合理选择工作电流与 PCB 布局,可在多数中低速隔离场合获得良好性能与长期可靠性。

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