@PlasmaHH, that is going to be really hard to do. ANy other options?

I was looking for something online, without a quote the customer may not place an order

Also take a look at this question electronics.stackexchange.com/questions/122811/…

They make it bulk. THis is the only answer you are going to get, wherever you look ,whatever you try, unless ofcourse the chip is different

I am a little confused. The input to the comparator are the 2 lines coming from zero current and the latch. Why is there a ferrite transformer? Is this for isolation. Also for a MOSFET to be used as a switch it should be in linear regions. Why do you connect the source and gate of the NMOS device?

Yep. That is the one