Multiple Battery Setup

On Feb 5, 8:47*pm, JohnDeRosa wrote:
But then in the Specs Table I read;

* *ÄVSD Source-Drain Regulation Voltage (VIN - VOUT) 1mA IIN 100mA
l 25 mV (Typ)
* *ÄVSD Body Diode Forward Voltage Drop IIN = 5A, MOSFET Off l 0.8 V
(Typ)

So aren't we back to a silicon diode like forward drop? *OK, when the
MOSFET is ON then we are back to the 0.1 volt. * Interesting.

The 0.8V voltage drop is for the "body diode" of the internal MOSFET:
http://en.wikipedia.org/wiki/Power_MOSFET#Body_diode
In other words, that's the drop you will get if the controller dies,
or if the input voltage drops below 9V.

Lousy SM packaging for our application though. *Bart - How are you
mounting it? *Pictures?

I have never used one in a glider. If I were to, I would put the two
chips on a small PCB and cover it with heatshrink. Something like
this: http://i00.i.aliimg.com/img/pb/905/8...834905_364.jpg

Actually, if I find time, I can make a prototype within a week or two.
Then Karl can test it if he wants to :-)

Bart

I would certainly be willing to give it a try.

I would certainly be willing to give it a try. Would 5amps be adequate for this? Are these diodes fail operational, i.e. if it fails will I continue to get power from the effected battery.