Power Integrations InnoSwitch3-AQ
900 V PowiGaN-based InnoSwitch3-AQ supports 100 W oOutput in 400 V BEV systems
AEC-Q100 qualified InnoSwitch3-AQ flyback switcher IC family is now available with 900 V gallium-nitride (GaN) options. Featuring PI’s PowiGaN technology, the new devices deliver up to 100 W with better than 93% efficiency and eliminate the need for heatsinks. The increased power and design margin are particularly suitable for 12 V battery replacement in electric vehicles based on 400 V bus systems.
PI’s proprietary PowiGaN technology provides the reliability and ruggedness required to realize the 900 V rating. EV manufacturers are optimizing their 400 V systems and re-engineering various power stages in the vehicle, such as the traction invertor, the on-board charger and the emergency power supply. 900 V PowiGaN switches can easily accommodate inductive noise spikes and operate from as low as 30 VDC, enabling systems to meet functional safety active discharge requirements.
All InnoSwitch3-AQ devices feature synchronous rectification control, a valley-switching discontinuous conduction mode (DCM) and continuous conduction mode (CCM) flyback controller. FluxLink communication technology enables the IC package to bridge the isolation barrier, eliminating the need for optocouplers and optimizing efficiency, which improves EV range and thermal management.
Design tools
- DER-953Q design example report – 100 W power supply replacing 12 V battery in 400 V BEVs
- AN-106Q application note – InnoSwitch3-AQ Family Design Guide for Automotive Applications
- PI Expert – Our powerful browser-based design tool updates automatically to support the latest products. PI Expert turns your specifications into a ready-to-build design within minutes.
PI’s Design services
- Full schematic design, BOM, transformer design, PCB layout, hardware builds, prototype designing and testing, EMI testing, and all types of pre-compliance testing.
- From simple data sheet questions to complex design challenges, get support directly from our engineers. PowerPros is an online tech support service that enables power-supply designers to talk directly with members of our applications engineering team 24 hours a day, six days a week, anywhere in the world.
Key features
- AEC-Q100 qualified
- ASIL-Ready up to ASIL-D
- Up to 95% full-load efficiency
- Less than 15 mW no-load input power
- Integrated FluxLink feedback link, HIPOT-tested to ensure good isolation
- Exceptional CV/CC accuracy, independent of external components
- Adjustable accurate output current sense using external resistor
- Auto-restart fault response for output OVP
Applications
- Emergency power supply (EPS)
- Traction inverter
- High- to low-voltage DC-DC converters (µDCDC)
- Battery management system
- On-board charger
- 12 V system standby
Do you have a Question?
Contact EBV
If you need any assistance, please click below to find your closest EBV sales office.
Related documents |