Dynomotion

Group: DynoMotion Message: 7990 From: Jing Zhang Date: 7/24/2013
Subject: Max current in analog output in KStep
Hi, Tom,

I would like to use the analog output pin in kstep JP33, Pin 6 to drive a transistor.
What is the maximum current flow for this analog output pin? 
My need is about 50 mA.

Best
Jing
Group: DynoMotion Message: 7991 From: Tom Kerekes Date: 7/24/2013
Subject: Re: Max current in analog output in KStep
Hi Jing,

The output impedance is about 1K Ohms.  It will not drive 50ma.

Here is the circuit:

http://dynomotion.com/Help/SchematicsKStep/IsolatedPWMtoAnalog.png

Regards
TK

Group: DynoMotion Message: 7992 From: Jing Zhang Date: 7/24/2013
Subject: Re: Max current in analog output in KStep
Hi, Tom,

Thanks for this information.
I will use two level amplifications for it.

Best
Jing