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What is the turn-on time between the voltage applied to the photodiode and turn-on of the optocoupler?

April 26, 2017applied optocoupler photodiode time turn-on voltage

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What is the turn-on time between the voltage applied to the photodiode and turn-on of the optocoupler?

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The delay time between the LED current and reaction time of the photodiode is listed as 2µS in the datasheet. It is defined as Ton and Toff. Of more concern is the capacitive load. The output current supplied by the photo-diode is dependent on the LED current, and the gain of the optocoupler (refer to data sheet). The optocoupler acts like a current source. The switching time will depend on how long it takes the current output from the optcoupler to charge the load capacitance.