Would it be possible to see an example call? I'm following the parameters, but not getting any output. I think I may just be confusing package, model and class.
My package is called "myArticles", and it's located in core/components/myArticles. I'd be glad to provide anything else you need for a good example. Right now, my call looks like this:
[[!loopDbChunk? &package=`myArticles` &model=`components/myArticles` &tpl=`dashboardRowTpl` &class=`articles`]]