WMSIC Electronic Components

UMW PS2701-1-L PS2701

ModelPS2701-1-L
PackageSOP-4
BrandUMW
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
UMW PS2701-1-L
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PS2701-1-L
Electronic Component
1
Package
SOP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.2g
Electronic Component
1
Electronic Component
5us
Electronic Component
BM0228149420
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
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.

PS2701-1-L 产品概述

一、产品简介

PS2701-1-L 为 UMW(友台半导体)出品的单通道光电耦合器,输入为直流 LED,输出为光电三极管(phototransistor)。器件采用 SOP-4 封装,提供高达 5 kVrms 的隔离电压,适合板间或系统间的逻辑电平隔离与信号传输。器件特性兼顾低饱和电压和较宽的电流传输比(CTR)范围,适用于工业控制、通信接口、家电及通用数字隔离场合。

二、主要特性

  • 输入类型:DC(LED 驱动)
  • 输出类型:光电三极管(单通道)
  • 正向压降(Vf):约 1.1 V(典型)
  • 正向电流(If)最大:50 mA,建议在实际应用中按额定条件使用并作热/功率余量考虑
  • 输出电流:最大 50 mA
  • 电流传输比(CTR):最小 50%,最大 300%(在规范测试条件下)
  • 集—射极饱和电压 VCE(sat):约 300 mV(条件示例:Ic = 10 mA,If = 2 mA)
  • 上升/下降时间:tr ≈ 3 µs,tf ≈ 5 µs(适合中低速数字信号)
  • 隔离电压(Vrms):5 kV(确保隔离安全)
  • 直流反向耐压(Vr):6 V(LED 反向耐压)
  • 负载电压:最大 80 V(光电三极管对外部电源耐受)
  • 总功耗 Pd:200 mW(器件功耗限制)
  • 工作温度范围:-55 ℃ ~ +110 ℃
  • 封装:SOP-4(表面贴装,节省空间)

三、典型应用场景

  • MCU 与高压/大地电位回路之间的信号隔离
  • 工业控制信号的光耦隔离(PLC、驱动信号)
  • 开关电源次级控制/反馈信号隔离
  • 电话与通信接口隔离、防止共地干扰
  • 测试测量设备的输入保护与隔离

四、使用建议与设计注意事项

  • 驱动 LED 时尽量在保证 CTR 的前提下选择合适 If,常用 If 为 1–5 mA,可在功耗与响应速度间平衡;示例:在 3.3 V MCU 驱动、取 If = 2 mA 时,限流电阻 R ≈ (3.3 − 1.1) / 2 mA ≈ 1.1 kΩ。
  • 输出侧为开集电极结构,需外接上拉电阻到所需逻辑电平;上拉电阻值应根据期望的 Ic 与响应速度选择(较小值提高速度但增加功耗)。
  • 注意 CTR 在生产批次和温度下有较大变化(50%–300%),关键应用建议留有裕度或进行实际样品测试以确认最小 CTR 满足要求。
  • VCE(sat) 低(约 300 mV)有利于降低开关损耗,但此参数随 Ic/If 和温度变化。
  • 器件总功耗 Pd 为 200 mW,应注意在高 If 或高输出电流条件下做好热设计与降额处理。
  • LED 反向电压仅为 6 V,电路中务必避免对 LED 施加反向过压。
  • SOP-4 封装适合常规 SMT 回流工艺,焊接时参考厂方推荐的回流曲线与焊盘布局以确保可靠性。

五、可靠性与选型建议

  • 需要高隔离耐压或安全规范认证时,核对具体型号是否具备相关认证(如 UL、VDE),并在系统设计中保留足够爬电距离与固体绝缘间隙。
  • 对速度有较高要求的场景应评估 tri/tf 性能,或考虑光耦高速版本。
  • 在批量采购前建议获取样品并在目标系统中进行 CTR、开关性能及温升测试,确保在最差条件下仍满足功能需求。

PS2701-1-L 在单通道、低 VCE(sat) 与较高隔离电压之间取得良好平衡,适合多数中低速数字隔离场合。选型时应综合考虑 CTR 波动、功耗限制及工作环境温度,合理设计驱动与负载电路以保证长期稳定运行。

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