1) Assuming 5 volt supply with a desired current of 10 mA at Pin 1 of the MOC3032 (see diagram), should Rin be 500 ohms? R=V/I
=5/0.01
=500Ω
2) If I follow the datasheet of the MOC3032 and use a 1K ohm resistor at Pin 4 and open the switch to Pin 1, the Emitter of the triac remains high. If I change the 1K ohm resistor to a 590 ohm resistor then the Emitter of the triac will go low when the switch is opened. How do I accurately calculate the desired resistor size on pin 4 of the MOC3032? Note- I am using 24 VAC instead of the 115 VAC of the datasheet.
=5/0.01
=500Ω
2) If I follow the datasheet of the MOC3032 and use a 1K ohm resistor at Pin 4 and open the switch to Pin 1, the Emitter of the triac remains high. If I change the 1K ohm resistor to a 590 ohm resistor then the Emitter of the triac will go low when the switch is opened. How do I accurately calculate the desired resistor size on pin 4 of the MOC3032? Note- I am using 24 VAC instead of the 115 VAC of the datasheet.