Hv490fhb-n80: Datasheet

First, I should try to find the datasheet online. Let me do a quick search for "hv490fhb-n80 datasheet". Hmm, the results aren't showing up. Maybe the part doesn't exist under that exact naming, or it's a non-standard part. Perhaps it's a typo or a custom part. Alternatively, maybe it's from a less-known manufacturer or a newer component not widely indexed.