CNY74-2 DATASHEET PDF

CNY/ TELEFUNKEN Semiconductors. Rev. A2, Dec 1 (9). Multichannel Optocoupler with Phototransistor Output. Description. The CNY and. CNYH includes 2 isolator channels. • CNYH includes 4 isolator channels. • Isolation test voltage VISO = VRMS. • Test class 25//21 DIN 40 Features. • CNYH includes 2 isolator channels. • CNYH includes 4 isolator channels. • Isolation test voltage VISO = VRMS.

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Jan 22, Discussion in ‘ General Electronics Chat ‘ started by gerald81Jan 20, Tales from 80s Tech: Jan 20, 2. Dagasheet do not know were you got the nA from. Optocoupler fails after month.

This will show the voltage drop versus current. But use a emitter resistor in the range of 4. And that is also important.

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Hence the emitter resistor will control the current. The LED will also have a voltage drop. So stick with figure 2 in the datasheet. I will use a trimmer instead a resistor. Jan 22, 7.

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CNY Optocoupler | All About Circuits

There is a simple formula to calculate the two resistor for each optocoupler? So the current in a 4. I would not have used a trimmer. Posted by rjjenkins in forum: Your name or email address: Jan 22, 6. Jan 22, 8. It should be easy now to get a picture of the resistor wattage.

And the higher current. Hello people, i’m new to electronic circuits.

cny74 2 datasheet pdf ibm

And you will no problem at all. Dataaheet 11, 5, 1, In summary, hereafter you can see the formulas for resistors wattage: Assume using figure 2 in the datasheet.

Go for a LED current equal to 15mA. From the datasheet I think a LED current in range mA should be enough to turn the transistor into saturation. But the transistor in the opto will datasheet more or less full on with a LED current of 15mA. You can use figure 2.

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Jan 24, You will have values well inside the spec of the opto. Jan 22, 4. Have you done any calculations on LEDs and transistors before? Ok, looking the figure 4, at 15mA there is about 1.

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Replace the nA with the current determined by the transistor Vce which you set correct to 0. It is much the same The input is a LED and the output is a transistor. We see that the Saturation voltage, collector emitter will be at typical. No need to datasheet the transistor conducting max current.