I have this chip that's part of an electronic cigar (or vape, whatever it's called.)
I would like to exploit this board as a charging circuit for another device.
I believe the chip does both charging the battery and switching on the heating element since there are no other ICs on the board. It has USB input, air flow sensor and the battery both connected directly to it.
It has 8 legs, the longer side is 3mm long (measured with calipers).
The top row I believe says CSC9090B and on the bottom row there is something like STO(BK) (the last two letters are not readable.) Google search on these combinations does not produce anything useful.
What's this type of package called?