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InnoSwitch3-AQ

CV/CC QR Flyback Switcher IC with Integrated 750 V and 900 V Switch and FluxLink Feedback for Automotive Applications

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Product Parts Table
Product
Data Sheet
Power - Output (Max Low-Line)
Power - Output (Max High-Line)
Power - Output (Max, VDC)
Breakdown Voltage
Protection Features
Voltage Input (Min, DC)
Voltage Input (Max, DC)
Control Scheme
Topology
IC Package
Over-Temperature Response
Product Type
Temperature - Operating (Max)
Temperature - Operating (Min)
Internal Switch
Auto-Restart & Overvoltage Response
Auto-Restart Threshold
Cable Drop Compensation
Switching Frequency (max)
Switching Frequency (min)
Output Profile
MSL Rating
Secondary Response
Data Sheet View PDF
Power - Output (Max Low-Line) 10 W
Power - Output (Max High-Line) 20W
Power - Output (Max, VDC) 30 W
Breakdown Voltage 750 V
Protection Features Input Overvoltage, Input Undervoltage, Open SR FET Detection, Output Overload, Output Overvoltage, Output Short Circuit, Output Undervoltage, Overtemperature
Voltage Input (Min, DC) 30V
Voltage Input (Max, DC) 550V
Control Scheme Fluxlink
Topology Flyback
IC Package inSOP-24D
Over-Temperature Response Hysteretic
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Auto-restart
Auto-Restart Threshold 90%
Cable Drop Compensation X
Switching Frequency (max) 95 kHz
Switching Frequency (min) 25 kHz
Output Profile CV/CC
MSL Rating 3
Secondary Response Auto-restart
Data Sheet View PDF
Power - Output (Max Low-Line) 7 W
Power - Output (Max High-Line) 14W
Power - Output (Max, VDC) 22 W
Breakdown Voltage 900 V
Protection Features Input Overvoltage, Input Undervoltage, Open SR FET Detection, Output Overload, Output Overvoltage, Output Short Circuit, Output Undervoltage, Overtemperature
Voltage Input (Min, DC) 30V
Voltage Input (Max, DC) 950V
Control Scheme Fluxlink
Topology Flyback
IC Package inSOP-24D
Over-Temperature Response Hysteretic
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Auto-restart
Auto-Restart Threshold 90%
Cable Drop Compensation X
Switching Frequency (max) 95 kHz
Switching Frequency (min) 25 kHz
Output Profile CV/CC
MSL Rating 3
Secondary Response Auto-restart

The InnoSwitch3-AQ family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-AQ family 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 925 VDC.

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. Devices are available with standard and peak power delivery options, and commonly used auto-restart protection behaviors.

Product Highlights

Highly Integrated, Compact Footprint

  • AEC-Q100 qualified
  • Up to 90% efficiency across full load range
  • Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 750 V and 900 V switch and secondary-side sensing
  • Integrated FluxLink, HIPOT-isolated, feedback link
  • Wide input voltage 30 V to 925 V with StackFET
  • Fab, assembly and test site are IATF16949 certified

EcoSmart – Energy Efficient

  • Less than 15 mW no-load including line sense
  • Easily meets all global energy efficiency regulations
  • Low heat dissipation
  • Advanced Protection / Safety Features
  • Auto-restart fault response for output OVP

Optional Features

  • Auto-restart output UV protection with option for peak power delivery

Full Safety and Regulatory Compliance

  • Reinforced isolation
  • Isolation voltage >4000 VAC
  • 100% production HIPOT testing
  • UL1577 and TUV (EN60950) safety approved
  • 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)

Green Package

  • Halogen free and RoHS compliant

Applications

  • Auxiliary, standby and bias power supplies for automotive used in traction inverter, DC-DC converter and on-board charger