Hi All,

If you know any good H bridge IC chip at least 4A to control 12VDC Motor, please let me know.

Thanks, in advance.

Kevin

 

Going past about 2A, H-Bridges are usually used as drivers for discrete Power MOSFETs to do the actual current switching for the bridge.

One that is rate to 5 Amps is the MC33887

Heat may be an issue, so this would need a circuit board with a mid-sized copper area to draw heat away from the IC.

For higher currents one can be used like the Si977DW to drive the actual MOSFET output transistors, Figure 1 toward the bottom of the linked datasheet shows how to do this.

 

Thanks, for reply but the MC33887 is end of life.

Kevin

 

Take a look at a VNH2SP30-E - Automotive Fully Integrated H-Bridge Motor Driver
http://www.st.com/stonline/products/literature/ds/10832.htm

Lots of functionality in that IC. Be certain to follow the heat sinking requirements.

 

Thanks, for reply but this chip is not available until next year. Do you have any other one?

Kevin

 

It's been in production for a number of years now.

What do you mean it won't be available until next year?

Where on earth do you live? You should at least put your Country in your profile. State/province will also help. You don't have to get more specific than that.

Click on the "User CP" link at the top of the page. Fill in the information in the "Location" box, then click the "Save" button at the bottom.

 

I have search at mouser and digikey. They don't have stock for purchase until next January. I am in California

 

Here, try this link:
http://www.st.com/stonline/stappl/st/com/selector/index.html#querycriteria=RNP139=1039
There are a number of IC's near the bottom of the list that well exceed your requirements.

[eta]
Gee, looks like their "order" buttons aren't working, and a number of them are non-RoHS compliant. :/

Not sure what to tell you except contact ST Microelectronics sales, and find out what's up.

Or, go fish!

 

Thanks, for your new link.

Kevin

 

I honestly don't know what's going on with those. I haven't looked at authorized distributors stocks for those parts in awhile, but nobody has any except for Farnell in the UK, and they only have 30 or so - of ANY of those parts.

You're probably going to have to look at using discrete MOSFETs and gate driver ICs, which is going to consume more board space and take longer to assemble.

 

This site has an MC33887 mounted on PCBoard w/Caps

Are you looking for something mass production? Otherwise, unsure why "end of life" would matter for a one off hobby circuit, as those parts hang out on the cheaper hobby sites for quite some time.

 

Yes, I ink so. I might looking for the Mosfet or replay. Bill has helped me with relay from dual timer 556. I just looking for the H bridge IC, if it available, so that I don't need to build one.

Thanks, again
Kevin

 

Yes, I am llong for the H bridge IC for mass production


Thanks,
Kevin