STEVAL-ISV020V1 / AN4397: SPV1050 MPPT description error?

Posted on April 14, 2016 at 08:08

In the

http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00100185.pdf?sc=an4397

of SPV1050 evaluation board ISV020V1 the equation of MPPT ratio is given as

MPPratio * Voc= (Vin * R3) / (R1+R2+R3) [p.12].

However, the

http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00100984.pdf?sc=spv1050-datasheet

gives 

MPPratio = R3 / (R2 + R3) [p.25].

Quick test shows that value in datasheets matches values ISV020V1 produces. 

p.s. I received my ISV020V1 without test point hooks installed. I understand test points cost money,  I'd rather pay extra dollar or 2 for having the test points on board instead of having to buy them separately, clean the holes of solder and then solder the test points in. 

p.p.s. Please let me know who I should contact about issues of logging in to your email support system.

#spv1050