AVR-Chat

Hi Dave,

On 12 Aug 2004 at 13:42, Dave VanHorn wrote:

> At 01:36 PM 8/12/2004, Bruce Parham wrote:
> 
> 
> >WTF! Who said anything about running it at 50 mA? I was using 10 mA
> >as the example, that's 2x minimum for the LED and in limit for the
> >AVR...
> 
> The guaranteed full on current is 50mA

I believe the data sheet is trying to say that the minimum required 
input current for 120mA output current at 25deg C is 5mA. I also 
believe that it is confusing to include the max figure of 50mA which 
is also the absolute maximum continuous input current. If you check 
the graphs on page 3, the typical switch on input current is less 
than 2mA.

I also note in the fine print "If both poles operate load current 
must be derated so as not to exceed the package power dissipation 
valve." I guess the "dissipation valve" is where the smoke comes out 
when you exceed the ratings! ;-)

Cheers,
Les Grant.

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