Off-Line CV/CC QR Flyback Switcher IC with Integrated 650 V MOSFET, Synchronous Rectification & FluxLink Feedback for Applications up to 65 W

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Product Details

The InnoSwitch™3-CE family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-CE family incorporates primary and secondary controllers and safety-rated feedback into a single IC.

InnoSwitch3-CE family devices incorporate multiple protection features including line over and under-voltage protection, output over-voltage and over-current limiting, and over-temperature shutdown. Devices are available that support the common combinations of latching and auto-restart behaviors required by applications such as chargers, adapters, consumer electronics and industrial systems. The devices are available with and without cable-drop compensation.

Product Highlights

Highly Integrated, Compact Footprint

  • Up to 94% efficiency across full load range
  • Incorporates a multi-mode Quasi-Resonant (QR) / CCM flyback controller, 650 V MOSFET, secondary-side sensing and synchronous rectification driver
  • Integrated FluxLink™, HIPOT-isolated, feedback link
  • Exceptional CV/CC accuracy, independent of external components
  • Adjustable accurate output current sense using external sense resistor

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

  • Secondary MOSFET or diode short-circuit protection
  • Open SR FET-gate detection
  • Fast input line UV/OV protection

Optional Features

  • Cable-drop compensation with multiple settings
  • Variable output voltage, constant current profiles
  • Auto-restart or latching fault response for output OVP/UVP
  • Multiple output UV fault thresholds
  • Latching or hysteretic primary over-temperature protection

Full Safety and Regulatory Compliance

  • Reinforced isolation
  • Isolation voltage >4000 VAC
  • 100% production HIPOT testing
  • UL1577 and TUV (EN60950, EN62368) 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) and Ford FMC1278 (RI-115)


Power Table

Output Power (Watts)
230 VAC ± 15% 85-265 VAC
Adapter1 Open
Adapter1 Open
INN3162C-H1XX 10 W 12 W 10 W 10 W
INN3163C-H1XX 12 W 15 W 12 W 12 W
INN3164C-H1XX 20 W 25 W 15 W 20 W
INN3165C-H1XX 25 W 30 W 22 W 25 W
INN3166C-H1XX 35 W 40 W 27 W 36 W
INN3167C-H1XX 45 W 50 W 40 W 45 W
INN3168C-H1XX 55 W 65 W 50 W 55 W


  1. Minimum continuous power in a typical non-ventilated enclosed typical size adapter measured at 40 °C ambient. Max output power is dependent on the design. With condition that package temperature must be < = 125 °C.
  2. Minimum peak power capability.
  3. Package- C: inSOP-24D.

InnoSwitch-3 Feature Codes

InnoSwitch-3 ICs are highly configurable, and require a "Feature Code" to specify all of the configurable characteristics, such as the Auto Restart Threshold, Fault Response, and others. Feature Codes consist of the letter "H" followed by three numbers and are added to the end of the base part number. A Feature Code is required when ordering parts (e.g., INN3165C-H101).

The tables below provide a list of the characteristics of the Feature Codes, and the  parts available with that Feature Code. Please use these to determine which InnoSwitch-3 part is the best fit for your application. Alternatively, you can use our Build Your Own InnoSwitch tool.

CDC AR Threshold OTP Response AR and OVL Response Output Profile Vout OVP Secondary
H101 0 mV 63% Hysteretic AR Fixed CC 120% AR
H102 300 mV 63% Hysteretic AR Fixed CC 120% AR
H103 250 mV 63% Hysteretic AR Fixed CC 120% AR
H104 270 mV 63% Hysteretic AR Fixed CC 120% AR
H105 240 mV 63% Hysteretic AR Fixed CC 120% AR
H106 380 mV OL Latch Off AR Fixed CC 120% Latch Off
H107 380 mV OL Latch Off Latch Off Fixed CC 120% Latch Off
H109 0 mV 3.45 V Hysteretic AR Fixed CC 120% AR
H110 380 mV OL Latch Off AR Fixed CC 120% Latch Off

In the following table, click the PDF icon to view the data sheet addendum for each part.

  Common Feature Code
Part H101 H102 H103 H104 H105 H107 H109 H110
INN3162C-H1XX pdf icon pdf icon
INN3163C-H1XX pdf icon pdf icon
INN3164C-H1XX pdf icon pdf icon pdf icon
INN3165C-H1XX pdf icon pdf icon pdf icon pdf icon pdf icon pdf icon
INN3166C-H1XX pdf icon pdf icon pdf icon pdf icon pdf icon
INN3167C-H1XX pdf icon   pdf icon pdf icon pdf icon
INN3168C-H1XX pdf icon   pdf icon pdf icon pdf icon pdf icon

pdf icon = indicates part available with that Feature Code

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