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Increase the voltage at the output pin of optocoupler?

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rhnrgn

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Hello,

We are using your SFH6732 model Vishays optocoupler.

We applied 5V to its VCC and 24V 6.2ma to its input.

When i measure its output i see 3.8V. In order to make a PIC's input pin high, voltae should be at least 4V.

Can i do anything in order to get at least 4V from optocouplers output except increase Vcc. Can i use pull-ups?

Thank You.

Datasheet
https://www.vishay.com/docs/83685/sfh6731.pdf

Reference Designs
**broken link removed**
 

I would try pull-ups, e.g. 1k. If it doesn't work, use optocouplers with CMOS output specification or level converters.
 
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    rhnrgn

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