Too little info upfront to really help you.
So, I'll just make things easy. Use 110VAC with a redonkulously large capacity full bridge (or parallel them) and a bank of caps to match.
This will give you about 170VDC. Also buy health insurance.
dan
Thanks for the feedback/input. I'm going to try and sample a Molex version and see if will help. I'll report back.
It's not so much that it fails under "vib" testing but just moving it around like you would your cellphone. It's pretty pathetic in my opinion that it has problems with the...
In a recent design I used a miniSD card "push-pull" style connector.
The information stored on the card is positioning data from a GPS. The problem is that sometimes the data gets corrupted --some units are much worse than others and most of them never have any issues at all. The corruption...
Check here:
http://www.linear.com/pc/productDetail.jsp?navId=LTC3704
I've had good luck with the 3704 in several designs. The examples are enough to go on assuming you have basic ps design knowledge.
dan
Yep, everything needed to be small, with 500 components on a 2.5x5" board I had no choice. I did my best so this would not happen, Microchip always has some stock (unless you count on it apparently); they had stock when I designed them in a few months ago.
Not really sure what to do at the...
Hello all,
Seems like the place for this..
I used a handful of MCP1727T-ADJE/MFs (LDO, 8-DFN 3x3, 1.5A) on a design and it's back from FAB. I was just informed there is a problem getting them....can't find them anywhere
I would use an MCP1726 but it can't handle the current (worst-case)...
John,
Sure, the power would be the same but this is an impossible scenario. Like I mentioned earlier, a pump that draws 12A @12V would NOT draw 8A @18V. Current goes up or down with the voltage applied.
dan
IPAK? Anyway, DPAKs can go well over 20A. I'd drive them with a lot more than 3.3V.
I ran across this on a quick search...
http://www.fairchildsemi.com/ds/FD%2FFDD8870.pdf
Gate charge is pretty high; still not sure what you're driving it with.
dan
To add to what Keith said, DPAKs are great for pulling heat out. Don't think in terms of trace width on power supply design. Think planes. The wider, the shorter, the thicker, the better. Always. 90% of an efficient, cool, and generally awesome supply is the layout (okay and the parts you...
What will the duty cycle be? That are going to be driving the gate with 10V? 4? I ONLY use surface mount FETS; TO-220s are a pain in the butt. Like Keith mentioned, use 2oz copper if you can.
I'll pick out some great FETs for you if you tell more. You shouldn't have any heat issues running...
