https://www.futureelectronics.com/npi/power-integrations-innoswitch4-pro-flyback-switcher-ic  . DER-946Q describes a 10 W emergency power supply for 800 V BEV automotive applications. It uses a 1700 V SiC-based InnoSwitch3-AQ flyback switcher IC and features reinforced 1000 V isolation that is IEC-60664-1 and IEC-60664-4 compliant. 

https://www.futureelectronics.com/npi/power-integrations-linkswitch-tnz-offline-switcher-ic . DER-965Q is a 10 W non-isolated buck power supply for 400 V BEV automotive applications. This single-side board design uses AEC Q-qualified components. The ultra compact design allows 60-550 VDC wide input range and a 15 VDC / 650 mA output.