100 W flyback power supply for 400 V DC BEV automotive applications as a replacement for the 12 V lead-acid auxiliary battery, using 900 V PowiGaN-based InnoSwitch3-AQ (INN3990CQ)

• Ultra-compact design, 22 mm low profile, only 66 components with a single 900 V power switch
• Full load operation from 150 V DC to 500 V DC input, 13.5 V / 7.35 A output
• Reinforced 500 V isolated transformer (IEC-60664-1 and IEC-60664-4 compliant)
• ≥92% full load efficiency across the input voltage range
• Ambient operating temperature from -40 °C to 85 °C
• Uses automotive-qualified AEC-Q surface mounted components

Watch the DER-953Q Unboxing video with Peter Vaughan.