What should I do with the exposed pad on some Melexis parts?

You may find that a Melexis part number MLX90393SLW-ABA-011-RE has an exposed pad, but the documentation doesn’t specify or suggest what to do with it. Melexis has provided the following information and suggestion with what to do with it in your application:

“Yes it is a thermal pad for cooling purpose. But 393 is a micro power device which will not produce much heat. You can leave it float or connect it to ground.”