Food

LM2903N DATASHEET PDF

LMN ON Semiconductor / Fairchild Analog Comparators Dual Comparator datasheet, inventory, & pricing. LMN Datasheet, LMN National Semiconductor Low Power Dual Voltage Comparator Datasheet, buy LMN. LMN datasheet, LMN pdf, LMN data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Dual Comparator.

Author: Gor Goltigami
Country: Greece
Language: English (Spanish)
Genre: Science
Published (Last): 4 August 2004
Pages: 417
PDF File Size: 12.92 Mb
ePub File Size: 7.61 Mb
ISBN: 958-3-51799-739-2
Downloads: 22027
Price: Free* [*Free Regsitration Required]
Uploader: Daisar

Can you describe what you mean by “invert the inputs” by editing your question, please?

Comparator help (LmN) – Electrical Engineering Stack Exchange

For a better handle on what’s going on with an LM, take a a look at the data sheetparticularly at Figure 3. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. 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:. Sign up or log in Sign up using Google.

If you have a new question relating to a car horn, you should ask it separately. datasbeet

LM2903N Datasheet

Thank you for pointing this out and I will go back over the datasheet to get a better understanding of how to read it. Can anyone help me come up with ideas to try and get this working?

  HOWDENS CATALOGUE PDF

You need to add a pull-up resistor of about 10k between the output pin and daasheet positive supply rail. The horn is about 15 ohms.

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

ST Microelectronics – datasheet pdf

I looked over the datasheet for 3 days datassheet didn’t see the typical application. After I get my desired voltage out of my Comparator, how do I stabilize it so that I can use it on a load? Say I want to use the 12v Vout to make my horn go off on my car.

My wiring diagram looks similar to this picture I created in LTspice. In general, inputs come from the left and datashewt top of the drawing, and outputs go out the bottom and the right, kinda like dataaheet, after adding the pullup to the comparator’s output: By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

(PDF) LM2903N Datasheet download

Post as a guest Name. You’ll never get 0V out with GND equal to zero volts, no matter what, because of the saturation resistance of the comparator’s output transistor.

Just for grins – since you want to learn about comparators fatasheet it might be fun to take a look at the two circuits below and figure out why VOUT2 switches and VOUT1 doesn’t, even though VIN is the same input to both circuits. I will look into your question.

  KARLSRUHER PHYSIKKURS PDF

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

They helped a lot. Unfortunately, that ohm pullup I showed is more than likely causing the problem, and it should be more like 10k for an LM The LM has an lm293n collector output so it can not actively drive a positive voltage. 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.

Sign up using Facebook. Reading the datasheet would have quickly cleared this up, there’s even a nice “typical application” schematic. Lm2903nn, when I check the output the resulting voltage is 0v.

I am using a LMN to learn about comparators. The LM has an open-collector output. Sign up using Email and Password. Also, thanks for the 10K resistor idea that got the voltage down to what I was hoping to see.