15 W automotive power supply for 400 VDC battery electric vehicle (BEV) applications using InnoSwitch3-AQ (INN3996CQ, 900 V-rated) and Qspeed (LQ10N200CQ) with planar transformer for traction inverter gate-driver power supply or emergency power supply

• Input: 40 VDC - 500 VDC
• Output: 15 V, 1 A
• Low component count (only 36 electrical components)
• InSOP24 (C) package provides >5 mm Drain to Source pin spacing
• Planar transformer with reinforced isolation up to 500 VDC input and complies with Hi-Pot requirements (IEC-60664-1 and IEC-60664-4)
• ≥70% full load efficiency across the input voltage range
• Accurate secondary-side regulation without optocouplers
• Provides continuous 15 W output from -40 °C to 85 °C
• Uses automotive-qualified AEC-Q surface-mount (SMD) components
• Low profile: 16.8 mm high