Power Integrations INN3990CQ | Demoboard DER-953Q

Description

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)

Features

• Ultra-compact design for 400 VDC BEV automotive applications
• Low component count (only 66 components)1 design with a single 900 V power switch
• Full load operation from 150 VDC to 500 VDC input2
• Reinforced 500 V isolated transformer (IEC-60664-1 and IEC 60664-4 compliant)
• ≥92% full load efficiency across the input voltage range
• 1% output voltage load and line regulation
• Secondary-side regulated output
• Ambient operating temperature from -40 °C to 85 °C
• Complete fault protection, including output current limit and short-circuit protection
• Uses automotive-qualified AEC-Q surface mounted (SMD) components3
• Low profile, 22 mm height

Typical applications

• Power supplies for automotive subsystems such as the emergency

More information

• Datasheet
• IC product information