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Optocoupler device selection [Copy link]

I need to design an optocoupler isolation circuit, the input is a 5-24v digital signal, the output is 3.3v connected to the GPIO port (digital input DO) of stm32, please recommend an optocoupler chip
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Thank you for sharing! Shanghai IZH Electronic Technology looks forward to serving you  Details Published on 2019-4-1 09:44
 
 

2w

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The withstand voltage of the optocoupler of the same model from each manufacturer is slightly different. The withstand voltage of one end of the phototransistor of the optocouplers PC817, TLP521, and 4N25 can be 25V. You can take a closer look at the specific datasheet.
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1w

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Without speed specification, selection is impossible and voltage is not the main concern at all.
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Personal signature上传了一些书籍资料,也许有你想要的:http://download.eeworld.com.cn/user/chunyang
 
 
 

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Thank you for sharing! Shanghai IZH Electronic Technology looks forward to serving you
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