I've got a dozen small opt solid state relays that I am using with an MCU that will be ground switched with NPNs or a darlington array (fewer pins needed). The optical solid state relays are Omron G3VM-31AR. The link to the data sheet is below. In my design I plan on using 5 vdc coming from a separate power supply to switch them with the transistors triggered from the MCU gpio pins. When I look at the data sheet for these Omron SSRs I cannot figure out what the max forward voltage is to trigger the relays. Is 5V too much for the LED trigger?
The datasheet only indicates a maximum forward current of 30ma and a maximum reverse voltage of 6 volts. In the next section it references testing at 10ma with a min forward voltage of 1.5v and max of 1.8v, but I think that is just for trigger voltage.
Here is a link to the datasheet. Thank you in advance, for what seems to me like a simple spec question. I am just trying to figure out if I need a current limiting resistor for the solid state relays.
https://www.mouser.com/datasheet/2/307/en-3gvm_ar_dr-1771733.pdf
The datasheet only indicates a maximum forward current of 30ma and a maximum reverse voltage of 6 volts. In the next section it references testing at 10ma with a min forward voltage of 1.5v and max of 1.8v, but I think that is just for trigger voltage.
Here is a link to the datasheet. Thank you in advance, for what seems to me like a simple spec question. I am just trying to figure out if I need a current limiting resistor for the solid state relays.
https://www.mouser.com/datasheet/2/307/en-3gvm_ar_dr-1771733.pdf