Power Integrations InnoSwitch3-AQ Family of ICs
Simplify your design and manufacturing of flyback power converters
The InnoSwitch3-AQ family by Power Integrations combines primary and secondary controllers and safety-rated feedback into a single IC allowing accurate output voltage regulation even with wide input voltage range of 30 VDC to 1000 VDC.
This family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size.
InnoSwitch3-AQ family devices incorporate multiple protection features including line over and undervoltage protection, output overvoltage and over-current limiting, and over-temperature shutdown for automotive applications. Device start-up from 30 V makes it ideal for functional safety critical emergency power supplies.
Product Highlights Highly Integrated, Compact Footprint – AEC-Q100 qualified - Up to 95% efficiency across full load range
- Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 750 V, 900 V or 1700 V switch and secondary-side sensing
- Integrated FluxLink, HIPOT-isolated, feedback link
- Wide input voltage 30 V to >1000 V
Advanced Protection / Safety Features - Auto-restart fault response for output overvoltage and over-current
- Accurate programmable output over-current threshold
- Programmable input undervoltage
| EcoSmart – Energy Efficient - Less than 15 mW no-load including line sense
- Easily meets all global energy efficiency regulations
- Low heat dissipation
Full Safety and Regulatory Compliance - Fab, assembly and test site are IATF16949 certified
- Reinforced isolation per IEC60664-1
- Withstand isolation voltage >4000 VRMS
- 100% production HIPOT testing
- UL1577 isolation voltage 4000 VAC (max), TUV (EN62368-1), CQC (GB4943.1)
- EN IEC 60747-17 (VDE 0884-17) approved for INN3977CQ
- Excellent noise immunity enables designs that achieve class “A” performance criteria for EN61000-4 suite; EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m), FMC1278 (RI-115)
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Applications - Power supplies for automotive subsystems such as traction inverter emergency power supply (EPS)
- Battery management systems
| - High-voltage to low-voltage DC to DC converters (APM)
- On-board chargers
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