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LM2903N DATASHEET PDF

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Post as a guest Name. I will look into your question. After I get my desired voltage out of my Comparator, how do I stabilize it so that I can use it datssheet a load? Email Required, but never shown.

Since your original question has been dealt with to your satisfaction, it’s done with. You need a pullup resistor.

Thank you for pointing this out and Eatasheet will go back over the datasheet to get a better understanding of how to read it. I am using a LMN dataheet learn about comparators.

Can anyone help me come up with ideas to try and get this working? Comparator help LmN Ask Question. Left click on the graphic to make it go full-screen and, by the way, here’s the LTspice circuit list just in case you want to play with the circuit s: I mistakenly thought the inverted its output. Just for grins – since you want to learn about comparators – it might be fun to take a look at the two circuits below and figure out dattasheet VOUT2 switches and VOUT1 doesn’t, even though VIN is the same input to both circuits.

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You might want to try making your drawings easier to read, since that makes it much easier for us to follow the circuit’s ins and outs. Say I want to use datasheer 12v Vout to make my horn go off on my car.

LMN Datasheet(PDF) – NXP Semiconductors

Thanks for the drawings. Also, thanks for the 10K resistor idea that got the voltage down to what I was hoping to see. You’ll never get 0V out with GND equal to zero volts, no matter what, because of the saturation daasheet of the comparator’s output transistor.

One more question thought please? In general, inputs come from the left and the top of the drawing, and outputs go out the bottom and the right, kinda like this, after adding the pullup to the comparator’s output:. If you have a new question relating to a car horn, you should ask it separately. The LM has an open-collector output. The LM has an open collector output so it can not actively drive a positive voltage.

The horn is about 15 ohms. I looked over the datasheet lm29033n 3 days and didn’t see the typical application.

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(PDF) LM2903N Datasheet download

In general, inputs come from the left and the top of the drawing, and outputs go out the bottom and the right, kinda like this, after adding the pullup to the comparator’s output: Home Questions Tags Users Unanswered. Left click on the graphic to make it go full-screen and, by the way, here’s the LTspice circuit list just in case you want to play with the circuit s:.

Unfortunately, that ohm pullup I showed is more than likely causing the problem, and it should be more like 10k for an LM You need to add a pull-up resistor of about 10k between the output pin and your positive supply dxtasheet. Reading the datasheet would have quickly cleared this up, there’s even a nice “typical application” schematic.

Steve G 4, 1 7 Sign up using Email and Password. Why is this happening. Matthew Tubbs 5 1. Sign up or log in Sign up using Google. Can you describe what you mean by “invert the inputs” by editing your question, please?