Hi,
I've seen on a french board that to work corectly, a minimum load of 200 mA is required ? I was hoping to use it for a clock ( 10 mA ) ...
If it's true I'll have to put a resistor in // ... :-)
The external minimum current is zero. You have already a load through the opamp, the reference and the feedback network.
Thanks for the response, I'll ask him where he've read this :-)
He've answered me, here's the link :
and the sentence :http://tangentsoft.net/elec/opamp-linreg.html (http://tangentsoft.net/elec/opamp-linreg.html)
QuoteThe D44H11's minimum hFE is 60, so the minimum current from this configuration is about 330mA
The BD139 is a little bit less.
The meaning of this is load current and you can take out at least 330 mA.
thanks a lot for your response and your patience :wink: