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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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需要多大的LED驱动电流才能控制光继电器的开与关？
将驱动输出侧的MOSFET的状态反转以执行输出操作的LED阈值电流称作“LED触发电流IFT”。使用时，驱动LED电流必须设为等于或大于技术文件中规定的“IFT（最大值）”的数值。在东芝的产品线中，IFT（最大）为5mA或以下。此外，该IFT可能会受到环境温度范围内随时间推移出现的性能下降以及其它变化因素的影响。还必须考虑这些因素的变异系数。
有关详情，参阅东芝应用说明《Photorelay Specifications》第5章“DESIGN CONSIDERATIONS”。
（https://toshiba.semicon-storage.com/cn/semiconductor/knowledge/application-note.html）