Power Integrations InnoSwitch™3-AQ Switcher ICs
Power Integrations InnoSwitch™3-AQ Switcher ICs are CV/CC QR Flyback Switcher ICs integrated with 750V/900V/1700V switch and FluxLink™ feedback. These switcher ICs combine primary controllers, secondary controllers, and safety-rated feedback into a single IC. The InnoSwitch3-AQ switches offer protection features such as line over- and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. These switcher ICs incorporate up to 95% efficiency across the full load range, <15mW no-load input power, and 30V to >1000VDC wide input voltage range. Typical applications include traction inverter emergency power supply, high-voltage to low-voltage DC to DC converters, battery management systems, and onboard chargers.
Features
- Up to 95% efficiency across the full load range
- Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 750V/900V/1700V switch, and secondary-side sensing
- Integrated FluxLink™ - a reinforced isolation feedback link
- 30V to >1000VDC wide input voltage range
- <15mW no-load input power
- Low heat dissipation
- Advanced protection/safety:
- Auto-restart fault response for output over-voltage and over-current
- Accurate programmable output over-current threshold
- Programmable input undervoltage
- 100% production HIPOT testing
- EN IEC 60747-17 (VDE 0884-17) approved for INN3977CQ
- Reinforced isolation per IEC60664-1
- AEC-Q100 qualified
- Halogen-free and RoHS compliant
Applications
- Traction inverter emergency power supply
- High-voltage to low-voltage DC to DC converters (APM)
- Battery management systems
- Onboard chargers
Videos
Related Development Tools
Power Integrations RDK-1054Q Reference Design Kit
120W power supply with a planar transformer, designed to shrink or eliminate bulky 1V batteries.
Power Integrations RDK-1039Q Reference Design Kit
18W power supply with a planar transformer for traction inverter gate drivers or power supplies.
Power Integrations RDK-994Q Reference Design Kit
35W ultra-low-profile traction inverter gate-drive or emergency power supply.
Power Integrations RDK-840Q Evaluation Board
Designed to evaluate the INN3977CQ InnoSwitch™3-AQ switch.
Power Integrations Reference Design Kits (RDKs)
Real-world designs optimized for the most popular power conversion/supply applications.
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