Power Integrations InnoSwitch™3-AQ

The two new AEC-Q100 qualified, 1700 V-rated ICs of the  InnoSwitch3™-AQ family are the industry’s first automotive-qualified switching power supply ICs to incorporate a silicon carbide (SiC) primary switching MOSFET.

Delivering up to 70 W of output power, they are targeted for use in 600 V and 800 V battery and fuel-cell electric passenger vehicles. Highly integrated InnoSwitch ICs reduce the number of components required to implement a power supply by as much as 50%, saving significant circuit-board space, enhancing system reliability and mitigating component sourcing challenges.

Key features

• Industry-first 1700 V SiC primary side switch with up to 90% full-load efficiency
• Less than 15 mW no-load consumption
• Ultra-wide input voltage from 30 VDC to 1000 VDC
• Integrated FluxLink, reinforced isolation feedback link and AEC-Q100 qualified

Additional features

• Highly integrated, compact footprint
• Up to 90% efficiency across full load range
• Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 750 V, 900 V, 1700 V switch and secondary-side sensing
• Integrated FluxLink™, reinforced isolation feedback link, eliminating opto-isolator
• Wide input voltage 30 V to >1000 VDC
• EcoSmart™ – Energy efficient
• Less than 15 mW no-load input power
• Low heat dissipation
• Supports 400 V and 800 V DC bus
• AEC-Q100 qualified

Applications

• 600-800V battery & fuel-cell electric passenger vehicles, electric buses
• Power supplies for automotive subsystems

Available tools 

• PI Expert™ – Our powerful browser-based design tool automatically updates to support the latest products, including InnoSwitch3-AQ ICs. PI Expert turns your specifications into a ready-to-build design within minutes.