PWM Signal lights with arduino only when low-beams on

I don’t know if you can use them either.

Do you have any specific questions about each of those modules? It helps if you give a web page, like: “I saw on that the input voltage is 24V but I want to use this on 12V, is this OK?”

What about this chip ?

Looks good to me, but I don't recommend the complexity of adding a chip to drive a MOSFET. Zillions of other people want to turn 12V lights on and off, so there are many, many inexpensive single-chip solutions.

Also, that datasheet doesn't have any schematics showing you how to hook it up to a P-channel MOSFET. For someone starting out, that is a problem. Choose a device that has a "recommended circuit" in the datasheet that shows you exactly how to hook it up and what other components (resistors and capacitors) are required.

MorganS: Looks good to me, but I don't recommend the complexity of adding a chip to drive a MOSFET. Zillions of other people want to turn 12V lights on and off, so there are many, many inexpensive single-chip solutions.

Also, that datasheet doesn't have any schematics showing you how to hook it up to a P-channel MOSFET. For someone starting out, that is a problem. Choose a device that has a "recommended circuit" in the datasheet that shows you exactly how to hook it up and what other components (resistors and capacitors) are required.

Sorry for my delay( i was very cold )

I'm thinking of buying VN750 High-side driver, it also have some protections, compatible input, the only think i don't know is if i can use PWM with it

I also have seen this video uses a transistor and a P fet ![](https://s14.postimg.org/clhf72og1/Capture.jpg witch will be more easly then using that IC .

VN750 datasheet: http://www.st.com/content/ccc/resource/technical/document/datasheet/02/8a/c2/92/64/f1/47/a6/CD00044424.pdf/files/CD00044424.pdf/jcr:content/translations/en.CD00044424.pdf

Video: https://www.youtube.com/watch?v=qSMkR7Enit8)

The VN750 looks like a useful device but the datasheet doesn't mention PWM. There is only one specification that I can see which will help us decide if it is capable of PWM. That is the turn-on and turn-off time.

Those speeds look too slow for high speed PWM but the standard Arduino pins are 450-950Hz, which would probably work quite well with that chip.

In the datasheet the delay time for on state is 40 µs, now let's asume that we'll use 950Hz to turn it on and off 950Hz

so we have 950 times per sec and[ 0.00004(s delay)*2(on and off delays)*950(times) ] = 0.076s (total delay) = 72.2 times per secound lost because of the total delay -> 950 - 72 = 878Hz Not a big difference ? is all of this right :D :D :D ?