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Broadcom(博通) HCPL-181-00DE
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Broadcom HCPL-181-00DE
- Type
- BROADCOM
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BROADCOM
- Electronic Component
- HCPL-181-00DE
- Electronic Component
- 1
- Package
- SOP-4-2.54mm
- Electronic Component
- Transistor Output Optocoupler
- Electronic Component
- 0.108g
- Electronic Component
- 1
- Electronic Component
- 3us
- Electronic Component
- BM0230874014
- Operating Temperature
- 55℃~+100℃
- 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.
HCPL-181-00DE 产品概述
一、产品简介
HCPL-181-00DE 是 Broadcom（博通）出品的一款单通道光隔离器，输入为直流驱动的发光二极管，输出为光电三极管。器件采用 SOP-4（2.54mm）小型封装（Mini-Flat），隔离等级高达 3.75 kVrms，适合在需要信号隔离与共模抑制的场合替代直接电气连接。
二、主要特性
- 隔离电压：3.75 kVrms（典型等级），保证高压侧与低压侧的安全隔离。
- 输出类型：光电三极管，单通道，集电极-发射极饱和电压 VCE(sat) ≈ 200 mV（在 1 mA 与 20 mA 条件下）。
- 电流传输比（CTR）：50%（最小）至 600%（最大/饱和），便于不同工作点的设计优化。
- 输出能力：集电极电流最高可达 50 mA，允许较大的负载驱动能力。
- 响应速度：上升时间 tr ≈ 4 μs（在 2 mA、100 Ω 负载条件下），下降时间 tf ≈ 3 μs，适用于中速数字信号隔离。
- 其它：LED 正向压降 Vf ≈ 1.2 V，直流反向耐压 Vr ≈ 6 V，最大负载电压 80 V。
三、电气参数要点
设计时需关注 CTR 的大幅变动，实际输出电流 Io 与输入 LED 电流 If 的比例在 50%~600% 范围内波动；因此应按最小 CTR 进行保守设计以保证可靠性。LED 正向压降 1.2 V，需加串联限流电阻控制 If。输出为开集电极结构，通常配合上拉电阻或有源负载使用，且需留意 VCE(sat) 在不同 If 下的变化。
四、典型应用与使用建议
适用于微控制器接口隔离、开关电源控制信号隔离、电机驱动低侧/高侧逻辑隔离以及工业现场总线等。若需更快响应可通过提高 LED 驱动电流并减小集电极负载电阻改善上升时间，但会受 CTR 与功耗约束。高压隔离场合要遵循爬电距离与绝缘设计规范。
五、封装与环境适应性
SOP-4（2.54 mm）封装体积小，便于 PCB 密集布置。工作温度范围宽：-55 ℃ 至 +100 ℃，适应工业级应用。封装与布局应考虑绝缘要求与热散能力。
六、使用注意事项
- 设计应以 CTR 最小值为依据，预留裕量。
- 注意 LED 的反向电压不可超过 6 V。
- 输出与电源之间需合理布局以避免共模干扰，推荐按厂方典型应用电路接线与去耦。
- 对可靠性有高要求的系统，应考虑长期老化对 CTR 的影响并作校准或冗余设计。
总结：HCPL-181-00DE 以其高隔离电压、单通道紧凑封装与中等速度特性，适合工业与电源领域的信号隔离应用。设计时关注 CTR 波动、驱动电流与负载匹配，可获得稳定可靠的隔离通信。
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