BUY UCC3960 https://www.utsource.net/itm/p/882634.html
Primary Side Startup Controller
Description: The UCC3960 is a high performance, low cost, low-side gate driver for driving N-channel MOSFETs and IGBTs. Features: High peak output current of 2.5A Low propagation delay of 1.2μs Low supply current of 1.2mA Low shutdown current of 0.1μA High noise immunity Under-voltage lockout Over-voltage protection Thermal shutdown Short-circuit protection Open-drain output Low EMI RoHS compliant Applications: Motor control Switching power supplies Battery management Automotive applications Lighting applications (For reference only)