120 W flyback power supply with ultra-low-profile planar transformer for 800 V DC BEV automotive applications as a replacement for the 12 V lead-acid auxiliary battery, using InnoSwitch3-AQ with 1700 V SiC switch (INN3949FQ)

• Ultra-compact design, 20.6 mm low profile, only 53 electrical components with a single 1700 V power switch
• Wide-range start-up and operating voltage from <200 VDC to 900 VDC input, 12 V / 10 A output
• Reinforced 450 V isolated transformer (IEC-60664-1 and IEC-60664-4 compliant)
• Planar transformer with reinforced isolation up to 900 VDC input
• Compliant with partial discharge (PD) and Hi-Pot requirements (IEC-60664-1 and IEC-60664-4)
• InSOP28 (F) package providing >5 mm Drain to Source pin spacing (IEC 60664 safety distance compliant)
• Uses automotive-qualified AEC-Q surface mounted components