WMSIC Electronic Components

AOTE AT1019-CUH-L AT1019

ModelAT1019-CUH-L
PackageLSOP-4
BrandAOTE
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
AOTE AT1019-CUH-L
Type
AOTE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
AOTE
Electronic Component
AT1019-CUH-L
Electronic Component
1
Package
LSOP-4
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.327g
Electronic Component
1
Electronic Component
3us
Electronic Component
BM0257614107
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.

AT1019-CuH-L(LSOP-4)产品概述

一、产品简介

AT1019-CuH-L 是 AOTE(奥特)推出的一款单通道光耦,采用光电三极管输出,封装为 LSOP-4。该器件以高隔离电压、宽温度范围和高电流传输比(CTR)为主要特点,适用于工业控制、信号隔离、开关电源反馈及通信接口的电气隔离场合。

二、主要电气参数

  • 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:1.2 V(典型)
  • 正向电流 If:50 mA(最大)
  • 输出电流:50 mA(最大)
  • 集射极饱和电压 VCE(sat):300 mV(标称,条件:1 mA、10 mA)
  • 隔离电压 Vrms:5 kV
  • 直流反向耐压 Vr(LED):6 V
  • 负载电压(Collector–Emitter 最大):80 V
  • 输出通道数:1(单通道)
  • 上升时间 tr:2 μs(条件:If=5 mA,负载 100 Ω)
  • 下降时间 tf:3 μs
  • 工作温度范围:-55 ℃ 至 +110 ℃
  • 电流传输比 CTR:最小 200%,最大(饱和)400%

三、性能亮点

  • 高隔离能力:5 kV RMS 的隔离电压,满足常见的工业安全及电气隔离要求。
  • 大 CTR:200%~400% 的电流传输比,允许在较低 LED 驱动电流下获得较高的输出电流,便于降低驱动功耗。
  • 快速响应:上升/下降时间分别为 2 μs / 3 μs,适合中高速信号隔离应用。
  • 宽温适应:-55 ℃ 至 +110 ℃ 的工作温度,适合苛刻环境下的长期工作。

四、典型应用场景

  • 微控制器与高压或噪声电路之间的逻辑隔离
  • 开关电源的次级到初级反馈隔离
  • 工业现场总线、PLC 输入/输出隔离
  • 电机控制、电力电子保护电路中的信号隔离
  • 通信接口与模块之间的电位差隔离

五、封装与可靠性

AT1019-CuH-L 采用 LSOP-4 表面贴装封装,便于自动贴片和回流焊工艺。LSOP-4 的体积小、散热和机械稳定性良好,适用于紧凑型 PCB 布局。器件在额定工作温度和隔离电压下具有可靠的长期工作特性,但在高湿、高压差的应用中仍建议采取适当的封装保护和 PCB 间隙/爬电距离设计。

六、典型电路与选型要点

  • 驱动 LED 时需串联限流电阻,根据 Vf(1.2 V)和所需 If(≤50 mA)计算。建议在持续工作中采用更保守的 If 以延长寿命。
  • 输出侧通常需上拉电阻到所需逻辑电源(受 CTR、负载电流限制及上拉电阻值影响)。若要求低饱和电压,可在保证 CTR 的前提下增大 LED 驱动电流。
  • 注意 VCE 的最大耐压(80 V)和输出电流上限(50 mA),避免超出器件极限。
  • 在高共模干扰或需要更高速的场合,应评估上升/下降时间对系统时序的影响,并合理选择滤波或去耦措施。

七、使用建议与注意事项

  • 建议在实际系统中做热和寿命验证,避免长期在 If=50 mA 的最大值下工作;常用驱动电流应留有裕量。
  • 确保 PCB 设计满足所需的爬电距离和隔离要求,特别是在高压或安全相关应用中。
  • 对于需满足安规认证的应用,应结合系统级试验验证器件隔离性能。

如需引脚定义、封装尺寸图或推荐回流焊温度曲线等更详细资料,可向供应商索取完整数据手册。

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