Questions about VNH5019A-E board

Bellawill

Junior Member
Jan 19, 2017
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Hello,

I want to base my custom PCB project off of VNH5019A-E (details) dual h-bridge boards. I have a couple of questions concerning the layout I currently have:

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The MOSFETs I routed with are standard SOT-23 packages, and will generally not be able to conduct more than 2A of current. There are the ones used as reverse-battery protection.
I would like to know 2 things:

1) Will these smaller MOSFETs (shown in pink rectangles) work? I figure they are only useful for reverse-voltage protection. If they will not suit this purpose, what type of MOSFET would you recommend?

2) Is it possible to solder the motor drivers without a reflow oven? I have a hot-air gun, best case scenario. I'm not sure how to proceed with the heat slugs underneath the IC.

Thanks!