Breaking News
Blog

Using MCUs: Intelligent Digital Power Outputs

NO RATINGS
View Comments: Newest First | Oldest First | Threaded View
<<   <   Page 3 / 3
Max The Magnificent
User Rank
Blogger
Check out the ADVANCED SENSE Guide
Max The Magnificent   9/10/2013 10:47:13 AM
NO RATINGS
Speaking of high-side power switches with protection and diagnostic functions, have you read Infineon's ADVANCED SENSE Calibration and Benefits guide (http://tinyurl.com/ADVANCED-SENSE-1-0)?

As an aside... I happen to know that the guys who wrote this little rascal are incredibly clever and handsome and witty ... the words all appear to have been hand-picked at the crack of dawn while the morning dew is still glistening on them, and it goes without saying that the quality of the diagrams is fantastic...

antedeluvian
User Rank
Blogger
Re: Natty devices...
antedeluvian   9/10/2013 8:48:48 AM
NO RATINGS
David

 Are these things expensive?

This is an incredibly complex question. What is a good price for me is really expensive for someone designing for the mass market. Before I overwax philosophical though, it seems to me you are only interested in a single unit, so I will only state the price from Digikey for the automotive version AUIR3314S is C$4.81. (C$1 is approx US$1.) Apparently it is still available in a TO220 pack, if you want ease of connection although you may struggle to find it in that format although I see Digikey have 6 at C$6.95 at the moment and Mouser have it in abundance.

David Ashton
User Rank
Blogger
Re: Natty devices...
David Ashton   9/10/2013 5:21:37 AM
NO RATINGS
Thanks, Aubrey.  I was thinking of using it on an analogue variable power supply, before the main pass transistor.  Apart from being able to switch the output off electronically, you could get a ground-referenced voltage proportional to output current - very useful for measuring output current using a standard DVM module - which on a variable PSU is otherwise not easy..  Looking at the specs for your IR3314, I think it would work  ok.  I'll look at the others as well.  Are these things expensive?

antedeluvian
User Rank
Blogger
Re: Natty devices...
antedeluvian   9/9/2013 8:16:31 PM
NO RATINGS
Hi David

Aside from standard I/O type stuff, we have used the IR part as a form of peak current shutoff on a power supply using the current mirror to drive a comparator.

David Ashton
User Rank
Blogger
Natty devices...
David Ashton   9/9/2013 7:40:27 PM
NO RATINGS
Never heard aabout these before, thanks Aubrey.  I can think of a few uses for them apart from the intended automotive ones.

<<   <   Page 3 / 3
Most Recent Comments
Etmax
 
Charlie Cheng
 
betajet
 
betajet
 
TonyTib
 
Ray.Anderson
 
betajet
 
y_sasaki
 
junko.yoshida
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Top Comments of the Week